Home / 8,972.43-12,388.05-5,616.60

Finding the Fourth Proportional to 8,972.43, 12,388.05 and 5,616.60

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Solution

The fourth proportional to 8,972.43, 12,388.05 and 5,616.60 is: 7,754.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,972.43 : 12,388.05 = 5,616.60 : x
  2. Step 2: Convert to fraction form
    8,972.43/12,388.05 = 5,616.60/x
  3. Step 3: Cross multiply
    8,972.43x = 12,388.05 × 5,616.60
  4. Step 4: Simplify right side
    8,972.43x = 69,578,721.63
  5. Step 5: Solve for x
    x = 69,578,721.63/8,972.43
  6. Step 6: Final answer
    x = 7,754.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.