Home / 8,731.24-13,101.42-8,260.74

Finding the Fourth Proportional to 8,731.24, 13,101.42 and 8,260.74

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Solution

The fourth proportional to 8,731.24, 13,101.42 and 8,260.74 is: 12,395.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731.24 : 13,101.42 = 8,260.74 : x
  2. Step 2: Convert to fraction form
    8,731.24/13,101.42 = 8,260.74/x
  3. Step 3: Cross multiply
    8,731.24x = 13,101.42 × 8,260.74
  4. Step 4: Simplify right side
    8,731.24x = 108,227,424.25
  5. Step 5: Solve for x
    x = 108,227,424.25/8,731.24
  6. Step 6: Final answer
    x = 12,395.42

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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.