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Finding the Fourth Proportional to 26,660.74, 39,982.74 and 9,126.46

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Solution

The fourth proportional to 26,660.74, 39,982.74 and 9,126.46 is: 13,686.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,660.74 : 39,982.74 = 9,126.46 : x
  2. Step 2: Convert to fraction form
    26,660.74/39,982.74 = 9,126.46/x
  3. Step 3: Cross multiply
    26,660.74x = 39,982.74 × 9,126.46
  4. Step 4: Simplify right side
    26,660.74x = 364,900,877.30
  5. Step 5: Solve for x
    x = 364,900,877.30/26,660.74
  6. Step 6: Final answer
    x = 13,686.82

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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.