Home / 13,151.18-19,732.55-6,909.73

Finding the Fourth Proportional to 13,151.18, 19,732.55 and 6,909.73

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Solution

The fourth proportional to 13,151.18, 19,732.55 and 6,909.73 is: 10,367.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,151.18 : 19,732.55 = 6,909.73 : x
  2. Step 2: Convert to fraction form
    13,151.18/19,732.55 = 6,909.73/x
  3. Step 3: Cross multiply
    13,151.18x = 19,732.55 × 6,909.73
  4. Step 4: Simplify right side
    13,151.18x = 136,346,508.83
  5. Step 5: Solve for x
    x = 136,346,508.83/13,151.18
  6. Step 6: Final answer
    x = 10,367.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.