Home / 13,691.64-20,539.99-4,334.02

Finding the Fourth Proportional to 13,691.64, 20,539.99 and 4,334.02

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Solution

The fourth proportional to 13,691.64, 20,539.99 and 4,334.02 is: 6,501.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,691.64 : 20,539.99 = 4,334.02 : x
  2. Step 2: Convert to fraction form
    13,691.64/20,539.99 = 4,334.02/x
  3. Step 3: Cross multiply
    13,691.64x = 20,539.99 × 4,334.02
  4. Step 4: Simplify right side
    13,691.64x = 89,020,727.46
  5. Step 5: Solve for x
    x = 89,020,727.46/13,691.64
  6. Step 6: Final answer
    x = 6,501.83

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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.