Home / 7,418.90-11,126.61-3,472.88

Finding the Fourth Proportional to 7,418.90, 11,126.61 and 3,472.88

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Solution

The fourth proportional to 7,418.90, 11,126.61 and 3,472.88 is: 5,208.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.90 : 11,126.61 = 3,472.88 : x
  2. Step 2: Convert to fraction form
    7,418.90/11,126.61 = 3,472.88/x
  3. Step 3: Cross multiply
    7,418.90x = 11,126.61 × 3,472.88
  4. Step 4: Simplify right side
    7,418.90x = 38,641,359.69
  5. Step 5: Solve for x
    x = 38,641,359.69/7,418.90
  6. Step 6: Final answer
    x = 5,208.51

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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.