Home / 13,489.61-20,243.62-4,724.39

Finding the Fourth Proportional to 13,489.61, 20,243.62 and 4,724.39

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Solution

The fourth proportional to 13,489.61, 20,243.62 and 4,724.39 is: 7,089.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,489.61 : 20,243.62 = 4,724.39 : x
  2. Step 2: Convert to fraction form
    13,489.61/20,243.62 = 4,724.39/x
  3. Step 3: Cross multiply
    13,489.61x = 20,243.62 × 4,724.39
  4. Step 4: Simplify right side
    13,489.61x = 95,638,812.41
  5. Step 5: Solve for x
    x = 95,638,812.41/13,489.61
  6. Step 6: Final answer
    x = 7,089.82

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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.