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Finding the Fourth Proportional to 18,024.57, 27,024.12 and 6,921.90

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Solution

The fourth proportional to 18,024.57, 27,024.12 and 6,921.90 is: 10,377.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,024.57 : 27,024.12 = 6,921.90 : x
  2. Step 2: Convert to fraction form
    18,024.57/27,024.12 = 6,921.90/x
  3. Step 3: Cross multiply
    18,024.57x = 27,024.12 × 6,921.90
  4. Step 4: Simplify right side
    18,024.57x = 187,058,256.23
  5. Step 5: Solve for x
    x = 187,058,256.23/18,024.57
  6. Step 6: Final answer
    x = 10,377.96

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1.5x scale

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.