Home / 15,989.48-22,066.17-8,915.91

Finding the Fourth Proportional to 15,989.48, 22,066.17 and 8,915.91

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Solution

The fourth proportional to 15,989.48, 22,066.17 and 8,915.91 is: 12,304.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,989.48 : 22,066.17 = 8,915.91 : x
  2. Step 2: Convert to fraction form
    15,989.48/22,066.17 = 8,915.91/x
  3. Step 3: Cross multiply
    15,989.48x = 22,066.17 × 8,915.91
  4. Step 4: Simplify right side
    15,989.48x = 196,739,919.73
  5. Step 5: Solve for x
    x = 196,739,919.73/15,989.48
  6. Step 6: Final answer
    x = 12,304.33

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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.