Home / 8,422.38-12,619.20-5,952.45

Finding the Fourth Proportional to 8,422.38, 12,619.20 and 5,952.45

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Solution

The fourth proportional to 8,422.38, 12,619.20 and 5,952.45 is: 8,918.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,422.38 : 12,619.20 = 5,952.45 : x
  2. Step 2: Convert to fraction form
    8,422.38/12,619.20 = 5,952.45/x
  3. Step 3: Cross multiply
    8,422.38x = 12,619.20 × 5,952.45
  4. Step 4: Simplify right side
    8,422.38x = 75,115,157.04
  5. Step 5: Solve for x
    x = 75,115,157.04/8,422.38
  6. Step 6: Final answer
    x = 8,918.52

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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.