Home / 18,440.10-27,641.25-7,331.76

Finding the Fourth Proportional to 18,440.10, 27,641.25 and 7,331.76

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Solution

The fourth proportional to 18,440.10, 27,641.25 and 7,331.76 is: 10,990.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,440.10 : 27,641.25 = 7,331.76 : x
  2. Step 2: Convert to fraction form
    18,440.10/27,641.25 = 7,331.76/x
  3. Step 3: Cross multiply
    18,440.10x = 27,641.25 × 7,331.76
  4. Step 4: Simplify right side
    18,440.10x = 202,659,011.10
  5. Step 5: Solve for x
    x = 202,659,011.10/18,440.10
  6. Step 6: Final answer
    x = 10,990.13

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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.