Home / 13,691.52-20,539.81-4,333.89

Finding the Fourth Proportional to 13,691.52, 20,539.81 and 4,333.89

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Solution

The fourth proportional to 13,691.52, 20,539.81 and 4,333.89 is: 6,501.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,691.52 : 20,539.81 = 4,333.89 : x
  2. Step 2: Convert to fraction form
    13,691.52/20,539.81 = 4,333.89/x
  3. Step 3: Cross multiply
    13,691.52x = 20,539.81 × 4,333.89
  4. Step 4: Simplify right side
    13,691.52x = 89,017,266.33
  5. Step 5: Solve for x
    x = 89,017,266.33/13,691.52
  6. Step 6: Final answer
    x = 6,501.64

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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.