Home / 8,225.20-11,351.06-4,640.12

Finding the Fourth Proportional to 8,225.20, 11,351.06 and 4,640.12

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Solution

The fourth proportional to 8,225.20, 11,351.06 and 4,640.12 is: 6,403.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,225.20 : 11,351.06 = 4,640.12 : x
  2. Step 2: Convert to fraction form
    8,225.20/11,351.06 = 4,640.12/x
  3. Step 3: Cross multiply
    8,225.20x = 11,351.06 × 4,640.12
  4. Step 4: Simplify right side
    8,225.20x = 52,670,280.53
  5. Step 5: Solve for x
    x = 52,670,280.53/8,225.20
  6. Step 6: Final answer
    x = 6,403.53

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Half scale
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Double scale
Find fourth proportional to 8,226.20, 11,352.44 and 4,641.12
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.