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Finding the Fourth Proportional to 8,754.28, 13,129.44 and 2,514.28

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Solution

The fourth proportional to 8,754.28, 13,129.44 and 2,514.28 is: 3,770.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,754.28 : 13,129.44 = 2,514.28 : x
  2. Step 2: Convert to fraction form
    8,754.28/13,129.44 = 2,514.28/x
  3. Step 3: Cross multiply
    8,754.28x = 13,129.44 × 2,514.28
  4. Step 4: Simplify right side
    8,754.28x = 33,011,088.40
  5. Step 5: Solve for x
    x = 33,011,088.40/8,754.28
  6. Step 6: Final answer
    x = 3,770.85

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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.