Home / 15,012.12-22,520.72-5,149.02

Finding the Fourth Proportional to 15,012.12, 22,520.72 and 5,149.02

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Solution

The fourth proportional to 15,012.12, 22,520.72 and 5,149.02 is: 7,724.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,012.12 : 22,520.72 = 5,149.02 : x
  2. Step 2: Convert to fraction form
    15,012.12/22,520.72 = 5,149.02/x
  3. Step 3: Cross multiply
    15,012.12x = 22,520.72 × 5,149.02
  4. Step 4: Simplify right side
    15,012.12x = 115,959,637.69
  5. Step 5: Solve for x
    x = 115,959,637.69/15,012.12
  6. Step 6: Final answer
    x = 7,724.40

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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.