Home / 18,198.32-25,122.17-10,643.60

Finding the Fourth Proportional to 18,198.32, 25,122.17 and 10,643.60

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Solution

The fourth proportional to 18,198.32, 25,122.17 and 10,643.60 is: 14,693.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,198.32 : 25,122.17 = 10,643.60 : x
  2. Step 2: Convert to fraction form
    18,198.32/25,122.17 = 10,643.60/x
  3. Step 3: Cross multiply
    18,198.32x = 25,122.17 × 10,643.60
  4. Step 4: Simplify right side
    18,198.32x = 267,390,418.03
  5. Step 5: Solve for x
    x = 267,390,418.03/18,198.32
  6. Step 6: Final answer
    x = 14,693.14

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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.