Home / 18,620.04-25,695.38-10,121.88

Finding the Fourth Proportional to 18,620.04, 25,695.38 and 10,121.88

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Solution

The fourth proportional to 18,620.04, 25,695.38 and 10,121.88 is: 13,968.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,620.04 : 25,695.38 = 10,121.88 : x
  2. Step 2: Convert to fraction form
    18,620.04/25,695.38 = 10,121.88/x
  3. Step 3: Cross multiply
    18,620.04x = 25,695.38 × 10,121.88
  4. Step 4: Simplify right side
    18,620.04x = 260,085,552.91
  5. Step 5: Solve for x
    x = 260,085,552.91/18,620.04
  6. Step 6: Final answer
    x = 13,968.04

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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.