Home / 13,220.94-18,244.86-7,252.70

Finding the Fourth Proportional to 13,220.94, 18,244.86 and 7,252.70

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Solution

The fourth proportional to 13,220.94, 18,244.86 and 7,252.70 is: 10,008.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.94 : 18,244.86 = 7,252.70 : x
  2. Step 2: Convert to fraction form
    13,220.94/18,244.86 = 7,252.70/x
  3. Step 3: Cross multiply
    13,220.94x = 18,244.86 × 7,252.70
  4. Step 4: Simplify right side
    13,220.94x = 132,324,404.90
  5. Step 5: Solve for x
    x = 132,324,404.90/13,220.94
  6. Step 6: Final answer
    x = 10,008.70

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1.5x scale

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.