Home / 11,332.80-16,991.10-5,087.70

Finding the Fourth Proportional to 11,332.80, 16,991.10 and 5,087.70

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Solution

The fourth proportional to 11,332.80, 16,991.10 and 5,087.70 is: 7,627.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,332.80 : 16,991.10 = 5,087.70 : x
  2. Step 2: Convert to fraction form
    11,332.80/16,991.10 = 5,087.70/x
  3. Step 3: Cross multiply
    11,332.80x = 16,991.10 × 5,087.70
  4. Step 4: Simplify right side
    11,332.80x = 86,445,619.47
  5. Step 5: Solve for x
    x = 86,445,619.47/11,332.80
  6. Step 6: Final answer
    x = 7,627.91

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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.