Home / 26,660.91-39,947.58-9,121.17

Finding the Fourth Proportional to 26,660.91, 39,947.58 and 9,121.17

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Solution

The fourth proportional to 26,660.91, 39,947.58 and 9,121.17 is: 13,666.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,660.91 : 39,947.58 = 9,121.17 : x
  2. Step 2: Convert to fraction form
    26,660.91/39,947.58 = 9,121.17/x
  3. Step 3: Cross multiply
    26,660.91x = 39,947.58 × 9,121.17
  4. Step 4: Simplify right side
    26,660.91x = 364,368,668.27
  5. Step 5: Solve for x
    x = 364,368,668.27/26,660.91
  6. Step 6: Final answer
    x = 13,666.78

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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.