Home / 18,616.12-25,690.45-10,118.32

Finding the Fourth Proportional to 18,616.12, 25,690.45 and 10,118.32

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Solution

The fourth proportional to 18,616.12, 25,690.45 and 10,118.32 is: 13,963.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,616.12 : 25,690.45 = 10,118.32 : x
  2. Step 2: Convert to fraction form
    18,616.12/25,690.45 = 10,118.32/x
  3. Step 3: Cross multiply
    18,616.12x = 25,690.45 × 10,118.32
  4. Step 4: Simplify right side
    18,616.12x = 259,944,040.30
  5. Step 5: Solve for x
    x = 259,944,040.30/18,616.12
  6. Step 6: Final answer
    x = 13,963.39

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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.