Home / 13,565.47-20,346.59-3,705.61

Finding the Fourth Proportional to 13,565.47, 20,346.59 and 3,705.61

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Solution

The fourth proportional to 13,565.47, 20,346.59 and 3,705.61 is: 5,557.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565.47 : 20,346.59 = 3,705.61 : x
  2. Step 2: Convert to fraction form
    13,565.47/20,346.59 = 3,705.61/x
  3. Step 3: Cross multiply
    13,565.47x = 20,346.59 × 3,705.61
  4. Step 4: Simplify right side
    13,565.47x = 75,396,508.84
  5. Step 5: Solve for x
    x = 75,396,508.84/13,565.47
  6. Step 6: Final answer
    x = 5,557.97

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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.