Home / 10,862.10-14,990.28-6,612.49

Finding the Fourth Proportional to 10,862.10, 14,990.28 and 6,612.49

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Solution

The fourth proportional to 10,862.10, 14,990.28 and 6,612.49 is: 9,125.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,862.10 : 14,990.28 = 6,612.49 : x
  2. Step 2: Convert to fraction form
    10,862.10/14,990.28 = 6,612.49/x
  3. Step 3: Cross multiply
    10,862.10x = 14,990.28 × 6,612.49
  4. Step 4: Simplify right side
    10,862.10x = 99,123,023.41
  5. Step 5: Solve for x
    x = 99,123,023.41/10,862.10
  6. Step 6: Final answer
    x = 9,125.59

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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.