Home / 11,915.60-16,443.27-6,610.32

Finding the Fourth Proportional to 11,915.60, 16,443.27 and 6,610.32

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Solution

The fourth proportional to 11,915.60, 16,443.27 and 6,610.32 is: 9,122.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,915.60 : 16,443.27 = 6,610.32 : x
  2. Step 2: Convert to fraction form
    11,915.60/16,443.27 = 6,610.32/x
  3. Step 3: Cross multiply
    11,915.60x = 16,443.27 × 6,610.32
  4. Step 4: Simplify right side
    11,915.60x = 108,695,276.55
  5. Step 5: Solve for x
    x = 108,695,276.55/11,915.60
  6. Step 6: Final answer
    x = 9,122.10

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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.