Home / 10,443.52-15,665.28-5,245.75

Finding the Fourth Proportional to 10,443.52, 15,665.28 and 5,245.75

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Solution

The fourth proportional to 10,443.52, 15,665.28 and 5,245.75 is: 7,868.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,443.52 : 15,665.28 = 5,245.75 : x
  2. Step 2: Convert to fraction form
    10,443.52/15,665.28 = 5,245.75/x
  3. Step 3: Cross multiply
    10,443.52x = 15,665.28 × 5,245.75
  4. Step 4: Simplify right side
    10,443.52x = 82,176,142.56
  5. Step 5: Solve for x
    x = 82,176,142.56/10,443.52
  6. Step 6: Final answer
    x = 7,868.63

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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.