Home / 14,753.12-20,359.40-8,785.04

Finding the Fourth Proportional to 14,753.12, 20,359.40 and 8,785.04

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Solution

The fourth proportional to 14,753.12, 20,359.40 and 8,785.04 is: 12,123.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,753.12 : 20,359.40 = 8,785.04 : x
  2. Step 2: Convert to fraction form
    14,753.12/20,359.40 = 8,785.04/x
  3. Step 3: Cross multiply
    14,753.12x = 20,359.40 × 8,785.04
  4. Step 4: Simplify right side
    14,753.12x = 178,858,150.35
  5. Step 5: Solve for x
    x = 178,858,150.35/14,753.12
  6. Step 6: Final answer
    x = 12,123.41

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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.