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Finding the Fourth Proportional to 8,882.70, 12,258.72 and 5,107.11

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Solution

The fourth proportional to 8,882.70, 12,258.72 and 5,107.11 is: 7,048.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,882.70 : 12,258.72 = 5,107.11 : x
  2. Step 2: Convert to fraction form
    8,882.70/12,258.72 = 5,107.11/x
  3. Step 3: Cross multiply
    8,882.70x = 12,258.72 × 5,107.11
  4. Step 4: Simplify right side
    8,882.70x = 62,606,631.50
  5. Step 5: Solve for x
    x = 62,606,631.50/8,882.70
  6. Step 6: Final answer
    x = 7,048.15

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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.