Home / 13,172.20-19,761.94-7,332.90

Finding the Fourth Proportional to 13,172.20, 19,761.94 and 7,332.90

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Solution

The fourth proportional to 13,172.20, 19,761.94 and 7,332.90 is: 11,001.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172.20 : 19,761.94 = 7,332.90 : x
  2. Step 2: Convert to fraction form
    13,172.20/19,761.94 = 7,332.90/x
  3. Step 3: Cross multiply
    13,172.20x = 19,761.94 × 7,332.90
  4. Step 4: Simplify right side
    13,172.20x = 144,912,329.83
  5. Step 5: Solve for x
    x = 144,912,329.83/13,172.20
  6. Step 6: Final answer
    x = 11,001.38

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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.