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Finding the Fourth Proportional to 10,063.52, 15,075.12 and 7,987.04

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Solution

The fourth proportional to 10,063.52, 15,075.12 and 7,987.04 is: 11,964.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,063.52 : 15,075.12 = 7,987.04 : x
  2. Step 2: Convert to fraction form
    10,063.52/15,075.12 = 7,987.04/x
  3. Step 3: Cross multiply
    10,063.52x = 15,075.12 × 7,987.04
  4. Step 4: Simplify right side
    10,063.52x = 120,405,586.44
  5. Step 5: Solve for x
    x = 120,405,586.44/10,063.52
  6. Step 6: Final answer
    x = 11,964.56

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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.