Home / 11,531.85-15,915.45-6,497.04

Finding the Fourth Proportional to 11,531.85, 15,915.45 and 6,497.04

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Solution

The fourth proportional to 11,531.85, 15,915.45 and 6,497.04 is: 8,966.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,531.85 : 15,915.45 = 6,497.04 : x
  2. Step 2: Convert to fraction form
    11,531.85/15,915.45 = 6,497.04/x
  3. Step 3: Cross multiply
    11,531.85x = 15,915.45 × 6,497.04
  4. Step 4: Simplify right side
    11,531.85x = 103,403,315.27
  5. Step 5: Solve for x
    x = 103,403,315.27/11,531.85
  6. Step 6: Final answer
    x = 8,966.76

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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.