Home / 11,862.45-17,793.68-11,315.70

Finding the Fourth Proportional to 11,862.45, 17,793.68 and 11,315.70

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Solution

The fourth proportional to 11,862.45, 17,793.68 and 11,315.70 is: 16,973.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,862.45 : 17,793.68 = 11,315.70 : x
  2. Step 2: Convert to fraction form
    11,862.45/17,793.68 = 11,315.70/x
  3. Step 3: Cross multiply
    11,862.45x = 17,793.68 × 11,315.70
  4. Step 4: Simplify right side
    11,862.45x = 201,347,888.20
  5. Step 5: Solve for x
    x = 201,347,888.20/11,862.45
  6. Step 6: Final answer
    x = 16,973.55

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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.