Home / 11,248.75-15,523.28-6,280.75

Finding the Fourth Proportional to 11,248.75, 15,523.28 and 6,280.75

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Solution

The fourth proportional to 11,248.75, 15,523.28 and 6,280.75 is: 8,667.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,248.75 : 15,523.28 = 6,280.75 : x
  2. Step 2: Convert to fraction form
    11,248.75/15,523.28 = 6,280.75/x
  3. Step 3: Cross multiply
    11,248.75x = 15,523.28 × 6,280.75
  4. Step 4: Simplify right side
    11,248.75x = 97,497,840.86
  5. Step 5: Solve for x
    x = 97,497,840.86/11,248.75
  6. Step 6: Final answer
    x = 8,667.44

Related Problems

Find fourth proportional to 5,624.38, 7,761.64 and 3,140.38
Half scale
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Double scale
Find fourth proportional to 11,249.75, 15,524.66 and 6,281.75
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.