Home / 18,682.32-25,781.92-10,298.80

Finding the Fourth Proportional to 18,682.32, 25,781.92 and 10,298.80

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Solution

The fourth proportional to 18,682.32, 25,781.92 and 10,298.80 is: 14,212.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,682.32 : 25,781.92 = 10,298.80 : x
  2. Step 2: Convert to fraction form
    18,682.32/25,781.92 = 10,298.80/x
  3. Step 3: Cross multiply
    18,682.32x = 25,781.92 × 10,298.80
  4. Step 4: Simplify right side
    18,682.32x = 265,522,837.70
  5. Step 5: Solve for x
    x = 265,522,837.70/18,682.32
  6. Step 6: Final answer
    x = 14,212.52

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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.