Home / 18,189.15-25,087.60-12,525.72

Finding the Fourth Proportional to 18,189.15, 25,087.60 and 12,525.72

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Solution

The fourth proportional to 18,189.15, 25,087.60 and 12,525.72 is: 17,276.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,189.15 : 25,087.60 = 12,525.72 : x
  2. Step 2: Convert to fraction form
    18,189.15/25,087.60 = 12,525.72/x
  3. Step 3: Cross multiply
    18,189.15x = 25,087.60 × 12,525.72
  4. Step 4: Simplify right side
    18,189.15x = 314,240,253.07
  5. Step 5: Solve for x
    x = 314,240,253.07/18,189.15
  6. Step 6: Final answer
    x = 17,276.25

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.