Home / 10,170.72-15,253.20-7,240.32

Finding the Fourth Proportional to 10,170.72, 15,253.20 and 7,240.32

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Solution

The fourth proportional to 10,170.72, 15,253.20 and 7,240.32 is: 10,858.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,170.72 : 15,253.20 = 7,240.32 : x
  2. Step 2: Convert to fraction form
    10,170.72/15,253.20 = 7,240.32/x
  3. Step 3: Cross multiply
    10,170.72x = 15,253.20 × 7,240.32
  4. Step 4: Simplify right side
    10,170.72x = 110,438,049.02
  5. Step 5: Solve for x
    x = 110,438,049.02/10,170.72
  6. Step 6: Final answer
    x = 10,858.43

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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.