Home / 18,565.68-25,612.04-13,521.84

Finding the Fourth Proportional to 18,565.68, 25,612.04 and 13,521.84

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Solution

The fourth proportional to 18,565.68, 25,612.04 and 13,521.84 is: 18,653.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,565.68 : 25,612.04 = 13,521.84 : x
  2. Step 2: Convert to fraction form
    18,565.68/25,612.04 = 13,521.84/x
  3. Step 3: Cross multiply
    18,565.68x = 25,612.04 × 13,521.84
  4. Step 4: Simplify right side
    18,565.68x = 346,321,906.95
  5. Step 5: Solve for x
    x = 346,321,906.95/18,565.68
  6. Step 6: Final answer
    x = 18,653.88

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Double scale
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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.