Home / 18,618.95-25,694.35-10,121.11

Finding the Fourth Proportional to 18,618.95, 25,694.35 and 10,121.11

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Solution

The fourth proportional to 18,618.95, 25,694.35 and 10,121.11 is: 13,967.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,618.95 : 25,694.35 = 10,121.11 : x
  2. Step 2: Convert to fraction form
    18,618.95/25,694.35 = 10,121.11/x
  3. Step 3: Cross multiply
    18,618.95x = 25,694.35 × 10,121.11
  4. Step 4: Simplify right side
    18,618.95x = 260,055,253.19
  5. Step 5: Solve for x
    x = 260,055,253.19/18,618.95
  6. Step 6: Final answer
    x = 13,967.23

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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.