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Finding the Fourth Proportional to 8,798.29, 12,139.07 and 5,260.82

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Solution

The fourth proportional to 8,798.29, 12,139.07 and 5,260.82 is: 7,258.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,798.29 : 12,139.07 = 5,260.82 : x
  2. Step 2: Convert to fraction form
    8,798.29/12,139.07 = 5,260.82/x
  3. Step 3: Cross multiply
    8,798.29x = 12,139.07 × 5,260.82
  4. Step 4: Simplify right side
    8,798.29x = 63,861,375.24
  5. Step 5: Solve for x
    x = 63,861,375.24/8,798.29
  6. Step 6: Final answer
    x = 7,258.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.