Home / 12,565.47-18,845.77-11,940.96

Finding the Fourth Proportional to 12,565.47, 18,845.77 and 11,940.96

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Solution

The fourth proportional to 12,565.47, 18,845.77 and 11,940.96 is: 17,909.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,565.47 : 18,845.77 = 11,940.96 : x
  2. Step 2: Convert to fraction form
    12,565.47/18,845.77 = 11,940.96/x
  3. Step 3: Cross multiply
    12,565.47x = 18,845.77 × 11,940.96
  4. Step 4: Simplify right side
    12,565.47x = 225,036,585.74
  5. Step 5: Solve for x
    x = 225,036,585.74/12,565.47
  6. Step 6: Final answer
    x = 17,909.13

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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.