Home / 18,456.29-27,688.07-6,769.61

Finding the Fourth Proportional to 18,456.29, 27,688.07 and 6,769.61

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Solution

The fourth proportional to 18,456.29, 27,688.07 and 6,769.61 is: 10,155.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,456.29 : 27,688.07 = 6,769.61 : x
  2. Step 2: Convert to fraction form
    18,456.29/27,688.07 = 6,769.61/x
  3. Step 3: Cross multiply
    18,456.29x = 27,688.07 × 6,769.61
  4. Step 4: Simplify right side
    18,456.29x = 187,437,297.11
  5. Step 5: Solve for x
    x = 187,437,297.11/18,456.29
  6. Step 6: Final answer
    x = 10,155.74

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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.