Home / 10,318.47-15,468.81-4,389.92

Finding the Fourth Proportional to 10,318.47, 15,468.81 and 4,389.92

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Solution

The fourth proportional to 10,318.47, 15,468.81 and 4,389.92 is: 6,581.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,318.47 : 15,468.81 = 4,389.92 : x
  2. Step 2: Convert to fraction form
    10,318.47/15,468.81 = 4,389.92/x
  3. Step 3: Cross multiply
    10,318.47x = 15,468.81 × 4,389.92
  4. Step 4: Simplify right side
    10,318.47x = 67,906,889.61
  5. Step 5: Solve for x
    x = 67,906,889.61/10,318.47
  6. Step 6: Final answer
    x = 6,581.10

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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.