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Finding the Fourth Proportional to 18,086.49, 27,086.00 and 15,637.05

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Solution

The fourth proportional to 18,086.49, 27,086.00 and 15,637.05 is: 23,417.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,086.49 : 27,086.00 = 15,637.05 : x
  2. Step 2: Convert to fraction form
    18,086.49/27,086.00 = 15,637.05/x
  3. Step 3: Cross multiply
    18,086.49x = 27,086.00 × 15,637.05
  4. Step 4: Simplify right side
    18,086.49x = 423,545,058.11
  5. Step 5: Solve for x
    x = 423,545,058.11/18,086.49
  6. Step 6: Final answer
    x = 23,417.76

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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.