Home / 15,120.18-22,583.48-12,003.75

Finding the Fourth Proportional to 15,120.18, 22,583.48 and 12,003.75

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Solution

The fourth proportional to 15,120.18, 22,583.48 and 12,003.75 is: 17,928.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,120.18 : 22,583.48 = 12,003.75 : x
  2. Step 2: Convert to fraction form
    15,120.18/22,583.48 = 12,003.75/x
  3. Step 3: Cross multiply
    15,120.18x = 22,583.48 × 12,003.75
  4. Step 4: Simplify right side
    15,120.18x = 271,086,388.03
  5. Step 5: Solve for x
    x = 271,086,388.03/15,120.18
  6. Step 6: Final answer
    x = 17,928.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.