Home / 12,952.80-17,874.45-7,287.85

Finding the Fourth Proportional to 12,952.80, 17,874.45 and 7,287.85

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Solution

The fourth proportional to 12,952.80, 17,874.45 and 7,287.85 is: 10,057.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,952.80 : 17,874.45 = 7,287.85 : x
  2. Step 2: Convert to fraction form
    12,952.80/17,874.45 = 7,287.85/x
  3. Step 3: Cross multiply
    12,952.80x = 17,874.45 × 7,287.85
  4. Step 4: Simplify right side
    12,952.80x = 130,266,310.43
  5. Step 5: Solve for x
    x = 130,266,310.43/12,952.80
  6. Step 6: Final answer
    x = 10,057.00

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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.