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Finding the Fourth Proportional to 9,454.80, 14,105.92 and 8,749.20

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Solution

The fourth proportional to 9,454.80, 14,105.92 and 8,749.20 is: 13,053.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,454.80 : 14,105.92 = 8,749.20 : x
  2. Step 2: Convert to fraction form
    9,454.80/14,105.92 = 8,749.20/x
  3. Step 3: Cross multiply
    9,454.80x = 14,105.92 × 8,749.20
  4. Step 4: Simplify right side
    9,454.80x = 123,415,515.26
  5. Step 5: Solve for x
    x = 123,415,515.26/9,454.80
  6. Step 6: Final answer
    x = 13,053.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.