Home / 14,753.48-20,358.90-8,785.64

Finding the Fourth Proportional to 14,753.48, 20,358.90 and 8,785.64

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Solution

The fourth proportional to 14,753.48, 20,358.90 and 8,785.64 is: 12,123.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,753.48 : 20,358.90 = 8,785.64 : x
  2. Step 2: Convert to fraction form
    14,753.48/20,358.90 = 8,785.64/x
  3. Step 3: Cross multiply
    14,753.48x = 20,358.90 × 8,785.64
  4. Step 4: Simplify right side
    14,753.48x = 178,865,966.20
  5. Step 5: Solve for x
    x = 178,865,966.20/14,753.48
  6. Step 6: Final answer
    x = 12,123.65

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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.