Home / 18,146.26-25,041.72-11,436.22

Finding the Fourth Proportional to 18,146.26, 25,041.72 and 11,436.22

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Solution

The fourth proportional to 18,146.26, 25,041.72 and 11,436.22 is: 15,781.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,146.26 : 25,041.72 = 11,436.22 : x
  2. Step 2: Convert to fraction form
    18,146.26/25,041.72 = 11,436.22/x
  3. Step 3: Cross multiply
    18,146.26x = 25,041.72 × 11,436.22
  4. Step 4: Simplify right side
    18,146.26x = 286,382,619.10
  5. Step 5: Solve for x
    x = 286,382,619.10/18,146.26
  6. Step 6: Final answer
    x = 15,781.91

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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.