Home / 15,003.50-22,507.99-5,143.78

Finding the Fourth Proportional to 15,003.50, 22,507.99 and 5,143.78

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Solution

The fourth proportional to 15,003.50, 22,507.99 and 5,143.78 is: 7,716.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,003.50 : 22,507.99 = 5,143.78 : x
  2. Step 2: Convert to fraction form
    15,003.50/22,507.99 = 5,143.78/x
  3. Step 3: Cross multiply
    15,003.50x = 22,507.99 × 5,143.78
  4. Step 4: Simplify right side
    15,003.50x = 115,776,079.67
  5. Step 5: Solve for x
    x = 115,776,079.67/15,003.50
  6. Step 6: Final answer
    x = 7,716.60

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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.