Home / 14,587.83-20,134.20-9,489.72

Finding the Fourth Proportional to 14,587.83, 20,134.20 and 9,489.72

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Solution

The fourth proportional to 14,587.83, 20,134.20 and 9,489.72 is: 13,097.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,587.83 : 20,134.20 = 9,489.72 : x
  2. Step 2: Convert to fraction form
    14,587.83/20,134.20 = 9,489.72/x
  3. Step 3: Cross multiply
    14,587.83x = 20,134.20 × 9,489.72
  4. Step 4: Simplify right side
    14,587.83x = 191,067,920.42
  5. Step 5: Solve for x
    x = 191,067,920.42/14,587.83
  6. Step 6: Final answer
    x = 13,097.76

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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.