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Finding the Fourth Proportional to 18,324.80, 27,490.80 and 6,637.76

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Solution

The fourth proportional to 18,324.80, 27,490.80 and 6,637.76 is: 9,957.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,324.80 : 27,490.80 = 6,637.76 : x
  2. Step 2: Convert to fraction form
    18,324.80/27,490.80 = 6,637.76/x
  3. Step 3: Cross multiply
    18,324.80x = 27,490.80 × 6,637.76
  4. Step 4: Simplify right side
    18,324.80x = 182,477,332.61
  5. Step 5: Solve for x
    x = 182,477,332.61/18,324.80
  6. Step 6: Final answer
    x = 9,957.94

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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.