Home / 10,531.68-15,797.89-3,415.76

Finding the Fourth Proportional to 10,531.68, 15,797.89 and 3,415.76

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Solution

The fourth proportional to 10,531.68, 15,797.89 and 3,415.76 is: 5,123.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,531.68 : 15,797.89 = 3,415.76 : x
  2. Step 2: Convert to fraction form
    10,531.68/15,797.89 = 3,415.76/x
  3. Step 3: Cross multiply
    10,531.68x = 15,797.89 × 3,415.76
  4. Step 4: Simplify right side
    10,531.68x = 53,961,800.75
  5. Step 5: Solve for x
    x = 53,961,800.75/10,531.68
  6. Step 6: Final answer
    x = 5,123.76

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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.