Home / 13,565.73-20,335.08-6,543.75

Finding the Fourth Proportional to 13,565.73, 20,335.08 and 6,543.75

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Solution

The fourth proportional to 13,565.73, 20,335.08 and 6,543.75 is: 9,809.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565.73 : 20,335.08 = 6,543.75 : x
  2. Step 2: Convert to fraction form
    13,565.73/20,335.08 = 6,543.75/x
  3. Step 3: Cross multiply
    13,565.73x = 20,335.08 × 6,543.75
  4. Step 4: Simplify right side
    13,565.73x = 133,067,679.75
  5. Step 5: Solve for x
    x = 133,067,679.75/13,565.73
  6. Step 6: Final answer
    x = 9,809.11

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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.