Home / 18,216.68-25,138.96-10,664.42

Finding the Fourth Proportional to 18,216.68, 25,138.96 and 10,664.42

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Solution

The fourth proportional to 18,216.68, 25,138.96 and 10,664.42 is: 14,716.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,216.68 : 25,138.96 = 10,664.42 : x
  2. Step 2: Convert to fraction form
    18,216.68/25,138.96 = 10,664.42/x
  3. Step 3: Cross multiply
    18,216.68x = 25,138.96 × 10,664.42
  4. Step 4: Simplify right side
    18,216.68x = 268,092,275.45
  5. Step 5: Solve for x
    x = 268,092,275.45/18,216.68
  6. Step 6: Final answer
    x = 14,716.86

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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.