Home / 18,606.47-25,666.13-12,234.20

Finding the Fourth Proportional to 18,606.47, 25,666.13 and 12,234.20

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Solution

The fourth proportional to 18,606.47, 25,666.13 and 12,234.20 is: 16,876.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,606.47 : 25,666.13 = 12,234.20 : x
  2. Step 2: Convert to fraction form
    18,606.47/25,666.13 = 12,234.20/x
  3. Step 3: Cross multiply
    18,606.47x = 25,666.13 × 12,234.20
  4. Step 4: Simplify right side
    18,606.47x = 314,004,469.90
  5. Step 5: Solve for x
    x = 314,004,469.90/18,606.47
  6. Step 6: Final answer
    x = 16,876.09

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1.5x scale

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.