Home / 18,525.12-27,787.68-6,221.76

Finding the Fourth Proportional to 18,525.12, 27,787.68 and 6,221.76

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Solution

The fourth proportional to 18,525.12, 27,787.68 and 6,221.76 is: 9,332.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,525.12 : 27,787.68 = 6,221.76 : x
  2. Step 2: Convert to fraction form
    18,525.12/27,787.68 = 6,221.76/x
  3. Step 3: Cross multiply
    18,525.12x = 27,787.68 × 6,221.76
  4. Step 4: Simplify right side
    18,525.12x = 172,888,275.92
  5. Step 5: Solve for x
    x = 172,888,275.92/18,525.12
  6. Step 6: Final answer
    x = 9,332.64

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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.