Home / 18,443.06-25,451.49-10,487.90

Finding the Fourth Proportional to 18,443.06, 25,451.49 and 10,487.90

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Solution

The fourth proportional to 18,443.06, 25,451.49 and 10,487.90 is: 14,473.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,443.06 : 25,451.49 = 10,487.90 : x
  2. Step 2: Convert to fraction form
    18,443.06/25,451.49 = 10,487.90/x
  3. Step 3: Cross multiply
    18,443.06x = 25,451.49 × 10,487.90
  4. Step 4: Simplify right side
    18,443.06x = 266,932,681.97
  5. Step 5: Solve for x
    x = 266,932,681.97/18,443.06
  6. Step 6: Final answer
    x = 14,473.34

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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.