Home / 11,188.53-15,438.98-6,471.93

Finding the Fourth Proportional to 11,188.53, 15,438.98 and 6,471.93

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Solution

The fourth proportional to 11,188.53, 15,438.98 and 6,471.93 is: 8,930.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,188.53 : 15,438.98 = 6,471.93 : x
  2. Step 2: Convert to fraction form
    11,188.53/15,438.98 = 6,471.93/x
  3. Step 3: Cross multiply
    11,188.53x = 15,438.98 × 6,471.93
  4. Step 4: Simplify right side
    11,188.53x = 99,919,965.47
  5. Step 5: Solve for x
    x = 99,919,965.47/11,188.53
  6. Step 6: Final answer
    x = 8,930.57

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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.