Home / 7,499.52-10,332.36-5,400

Finding the Fourth Proportional to 7,499.52, 10,332.36 and 5,400

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Solution

The fourth proportional to 7,499.52, 10,332.36 and 5,400 is: 7,439.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,499.52 : 10,332.36 = 5,400 : x
  2. Step 2: Convert to fraction form
    7,499.52/10,332.36 = 5,400/x
  3. Step 3: Cross multiply
    7,499.52x = 10,332.36 × 5,400
  4. Step 4: Simplify right side
    7,499.52x = 55,794,744
  5. Step 5: Solve for x
    x = 55,794,744/7,499.52
  6. Step 6: Final answer
    x = 7,439.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.