Home / 13,565.48-20,346.11-3,705.53

Finding the Fourth Proportional to 13,565.48, 20,346.11 and 3,705.53

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Solution

The fourth proportional to 13,565.48, 20,346.11 and 3,705.53 is: 5,557.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565.48 : 20,346.11 = 3,705.53 : x
  2. Step 2: Convert to fraction form
    13,565.48/20,346.11 = 3,705.53/x
  3. Step 3: Cross multiply
    13,565.48x = 20,346.11 × 3,705.53
  4. Step 4: Simplify right side
    13,565.48x = 75,393,102.46
  5. Step 5: Solve for x
    x = 75,393,102.46/13,565.48
  6. Step 6: Final answer
    x = 5,557.72

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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.