Home / 10,647.32-15,949.85-5,017.28

Finding the Fourth Proportional to 10,647.32, 15,949.85 and 5,017.28

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Solution

The fourth proportional to 10,647.32, 15,949.85 and 5,017.28 is: 7,515.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,647.32 : 15,949.85 = 5,017.28 : x
  2. Step 2: Convert to fraction form
    10,647.32/15,949.85 = 5,017.28/x
  3. Step 3: Cross multiply
    10,647.32x = 15,949.85 × 5,017.28
  4. Step 4: Simplify right side
    10,647.32x = 80,024,758.57
  5. Step 5: Solve for x
    x = 80,024,758.57/10,647.32
  6. Step 6: Final answer
    x = 7,515.96

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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.