Home / 8,976.65-13,432.16-5,280.62

Finding the Fourth Proportional to 8,976.65, 13,432.16 and 5,280.62

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Solution

The fourth proportional to 8,976.65, 13,432.16 and 5,280.62 is: 7,901.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,976.65 : 13,432.16 = 5,280.62 : x
  2. Step 2: Convert to fraction form
    8,976.65/13,432.16 = 5,280.62/x
  3. Step 3: Cross multiply
    8,976.65x = 13,432.16 × 5,280.62
  4. Step 4: Simplify right side
    8,976.65x = 70,930,078.78
  5. Step 5: Solve for x
    x = 70,930,078.78/8,976.65
  6. Step 6: Final answer
    x = 7,901.62

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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.