Home / 18,616.13-25,690.23-10,118.23

Finding the Fourth Proportional to 18,616.13, 25,690.23 and 10,118.23

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Solution

The fourth proportional to 18,616.13, 25,690.23 and 10,118.23 is: 13,963.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,616.13 : 25,690.23 = 10,118.23 : x
  2. Step 2: Convert to fraction form
    18,616.13/25,690.23 = 10,118.23/x
  3. Step 3: Cross multiply
    18,616.13x = 25,690.23 × 10,118.23
  4. Step 4: Simplify right side
    18,616.13x = 259,939,736.17
  5. Step 5: Solve for x
    x = 259,939,736.17/18,616.13
  6. Step 6: Final answer
    x = 13,963.15

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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.