Home / 13,247.97-18,282.69-7,280.21

Finding the Fourth Proportional to 13,247.97, 18,282.69 and 7,280.21

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Solution

The fourth proportional to 13,247.97, 18,282.69 and 7,280.21 is: 10,046.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.97 : 18,282.69 = 7,280.21 : x
  2. Step 2: Convert to fraction form
    13,247.97/18,282.69 = 7,280.21/x
  3. Step 3: Cross multiply
    13,247.97x = 18,282.69 × 7,280.21
  4. Step 4: Simplify right side
    13,247.97x = 133,101,731.15
  5. Step 5: Solve for x
    x = 133,101,731.15/13,247.97
  6. Step 6: Final answer
    x = 10,046.95

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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.