Home / 18,218.20-27,293.28-10,403.32

Finding the Fourth Proportional to 18,218.20, 27,293.28 and 10,403.32

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Solution

The fourth proportional to 18,218.20, 27,293.28 and 10,403.32 is: 15,585.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218.20 : 27,293.28 = 10,403.32 : x
  2. Step 2: Convert to fraction form
    18,218.20/27,293.28 = 10,403.32/x
  3. Step 3: Cross multiply
    18,218.20x = 27,293.28 × 10,403.32
  4. Step 4: Simplify right side
    18,218.20x = 283,940,725.69
  5. Step 5: Solve for x
    x = 283,940,725.69/18,218.20
  6. Step 6: Final answer
    x = 15,585.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.