Home / 18,456.40-27,686.22-6,769.72

Finding the Fourth Proportional to 18,456.40, 27,686.22 and 6,769.72

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Solution

The fourth proportional to 18,456.40, 27,686.22 and 6,769.72 is: 10,155.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,456.40 : 27,686.22 = 6,769.72 : x
  2. Step 2: Convert to fraction form
    18,456.40/27,686.22 = 6,769.72/x
  3. Step 3: Cross multiply
    18,456.40x = 27,686.22 × 6,769.72
  4. Step 4: Simplify right side
    18,456.40x = 187,427,957.26
  5. Step 5: Solve for x
    x = 187,427,957.26/18,456.40
  6. Step 6: Final answer
    x = 10,155.17

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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.