Home / 10,372.44-15,561.40-5,440.76

Finding the Fourth Proportional to 10,372.44, 15,561.40 and 5,440.76

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Solution

The fourth proportional to 10,372.44, 15,561.40 and 5,440.76 is: 8,162.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,372.44 : 15,561.40 = 5,440.76 : x
  2. Step 2: Convert to fraction form
    10,372.44/15,561.40 = 5,440.76/x
  3. Step 3: Cross multiply
    10,372.44x = 15,561.40 × 5,440.76
  4. Step 4: Simplify right side
    10,372.44x = 84,665,842.66
  5. Step 5: Solve for x
    x = 84,665,842.66/10,372.44
  6. Step 6: Final answer
    x = 8,162.58

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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.