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Finding the Fourth Proportional to 8,884.68, 12,259.80 and 5,107.92

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Solution

The fourth proportional to 8,884.68, 12,259.80 and 5,107.92 is: 7,048.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,884.68 : 12,259.80 = 5,107.92 : x
  2. Step 2: Convert to fraction form
    8,884.68/12,259.80 = 5,107.92/x
  3. Step 3: Cross multiply
    8,884.68x = 12,259.80 × 5,107.92
  4. Step 4: Simplify right side
    8,884.68x = 62,622,077.62
  5. Step 5: Solve for x
    x = 62,622,077.62/8,884.68
  6. Step 6: Final answer
    x = 7,048.32

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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.