Home / 15,142.96-22,713.88-5,282.20

Finding the Fourth Proportional to 15,142.96, 22,713.88 and 5,282.20

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Solution

The fourth proportional to 15,142.96, 22,713.88 and 5,282.20 is: 7,923.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,142.96 : 22,713.88 = 5,282.20 : x
  2. Step 2: Convert to fraction form
    15,142.96/22,713.88 = 5,282.20/x
  3. Step 3: Cross multiply
    15,142.96x = 22,713.88 × 5,282.20
  4. Step 4: Simplify right side
    15,142.96x = 119,979,256.94
  5. Step 5: Solve for x
    x = 119,979,256.94/15,142.96
  6. Step 6: Final answer
    x = 7,923.10

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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.