Home / 18,711.02-25,812.25-12,663.37

Finding the Fourth Proportional to 18,711.02, 25,812.25 and 12,663.37

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Solution

The fourth proportional to 18,711.02, 25,812.25 and 12,663.37 is: 17,469.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711.02 : 25,812.25 = 12,663.37 : x
  2. Step 2: Convert to fraction form
    18,711.02/25,812.25 = 12,663.37/x
  3. Step 3: Cross multiply
    18,711.02x = 25,812.25 × 12,663.37
  4. Step 4: Simplify right side
    18,711.02x = 326,870,008.97
  5. Step 5: Solve for x
    x = 326,870,008.97/18,711.02
  6. Step 6: Final answer
    x = 17,469.39

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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.