Home / 11,716.76-17,562.90-5,137.40

Finding the Fourth Proportional to 11,716.76, 17,562.90 and 5,137.40

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Solution

The fourth proportional to 11,716.76, 17,562.90 and 5,137.40 is: 7,700.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,716.76 : 17,562.90 = 5,137.40 : x
  2. Step 2: Convert to fraction form
    11,716.76/17,562.90 = 5,137.40/x
  3. Step 3: Cross multiply
    11,716.76x = 17,562.90 × 5,137.40
  4. Step 4: Simplify right side
    11,716.76x = 90,227,642.46
  5. Step 5: Solve for x
    x = 90,227,642.46/11,716.76
  6. Step 6: Final answer
    x = 7,700.73

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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.