Home / 14,565.72-20,102.40-8,279.04

Finding the Fourth Proportional to 14,565.72, 20,102.40 and 8,279.04

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Solution

The fourth proportional to 14,565.72, 20,102.40 and 8,279.04 is: 11,426.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,565.72 : 20,102.40 = 8,279.04 : x
  2. Step 2: Convert to fraction form
    14,565.72/20,102.40 = 8,279.04/x
  3. Step 3: Cross multiply
    14,565.72x = 20,102.40 × 8,279.04
  4. Step 4: Simplify right side
    14,565.72x = 166,428,573.70
  5. Step 5: Solve for x
    x = 166,428,573.70/14,565.72
  6. Step 6: Final answer
    x = 11,426.05

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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.