Home / 12,939.04-17,850.85-7,272.52

Finding the Fourth Proportional to 12,939.04, 17,850.85 and 7,272.52

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Solution

The fourth proportional to 12,939.04, 17,850.85 and 7,272.52 is: 10,033.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,939.04 : 17,850.85 = 7,272.52 : x
  2. Step 2: Convert to fraction form
    12,939.04/17,850.85 = 7,272.52/x
  3. Step 3: Cross multiply
    12,939.04x = 17,850.85 × 7,272.52
  4. Step 4: Simplify right side
    12,939.04x = 129,820,600.83
  5. Step 5: Solve for x
    x = 129,820,600.83/12,939.04
  6. Step 6: Final answer
    x = 10,033.25

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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.