Home / 18,145.19-25,039.72-10,187.75

Finding the Fourth Proportional to 18,145.19, 25,039.72 and 10,187.75

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Solution

The fourth proportional to 18,145.19, 25,039.72 and 10,187.75 is: 14,058.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145.19 : 25,039.72 = 10,187.75 : x
  2. Step 2: Convert to fraction form
    18,145.19/25,039.72 = 10,187.75/x
  3. Step 3: Cross multiply
    18,145.19x = 25,039.72 × 10,187.75
  4. Step 4: Simplify right side
    18,145.19x = 255,098,407.43
  5. Step 5: Solve for x
    x = 255,098,407.43/18,145.19
  6. Step 6: Final answer
    x = 14,058.73

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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.