Home / 18,196.32-25,110.66-10,129.92

Finding the Fourth Proportional to 18,196.32, 25,110.66 and 10,129.92

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Solution

The fourth proportional to 18,196.32, 25,110.66 and 10,129.92 is: 13,979.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,196.32 : 25,110.66 = 10,129.92 : x
  2. Step 2: Convert to fraction form
    18,196.32/25,110.66 = 10,129.92/x
  3. Step 3: Cross multiply
    18,196.32x = 25,110.66 × 10,129.92
  4. Step 4: Simplify right side
    18,196.32x = 254,368,976.95
  5. Step 5: Solve for x
    x = 254,368,976.95/18,196.32
  6. Step 6: Final answer
    x = 13,979.14

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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.