Home / 18,129.10-25,016.52-11,054.12

Finding the Fourth Proportional to 18,129.10, 25,016.52 and 11,054.12

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Solution

The fourth proportional to 18,129.10, 25,016.52 and 11,054.12 is: 15,253.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,129.10 : 25,016.52 = 11,054.12 : x
  2. Step 2: Convert to fraction form
    18,129.10/25,016.52 = 11,054.12/x
  3. Step 3: Cross multiply
    18,129.10x = 25,016.52 × 11,054.12
  4. Step 4: Simplify right side
    18,129.10x = 276,535,614.06
  5. Step 5: Solve for x
    x = 276,535,614.06/18,129.10
  6. Step 6: Final answer
    x = 15,253.69

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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.