Home / 21,660.75-32,486.13-6,866.91

Finding the Fourth Proportional to 21,660.75, 32,486.13 and 6,866.91

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Solution

The fourth proportional to 21,660.75, 32,486.13 and 6,866.91 is: 10,298.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,660.75 : 32,486.13 = 6,866.91 : x
  2. Step 2: Convert to fraction form
    21,660.75/32,486.13 = 6,866.91/x
  3. Step 3: Cross multiply
    21,660.75x = 32,486.13 × 6,866.91
  4. Step 4: Simplify right side
    21,660.75x = 223,079,330.96
  5. Step 5: Solve for x
    x = 223,079,330.96/21,660.75
  6. Step 6: Final answer
    x = 10,298.78

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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.