Home / 15,961.88-22,017.40-11,478.53

Finding the Fourth Proportional to 15,961.88, 22,017.40 and 11,478.53

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Solution

The fourth proportional to 15,961.88, 22,017.40 and 11,478.53 is: 15,833.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,961.88 : 22,017.40 = 11,478.53 : x
  2. Step 2: Convert to fraction form
    15,961.88/22,017.40 = 11,478.53/x
  3. Step 3: Cross multiply
    15,961.88x = 22,017.40 × 11,478.53
  4. Step 4: Simplify right side
    15,961.88x = 252,727,247.64
  5. Step 5: Solve for x
    x = 252,727,247.64/15,961.88
  6. Step 6: Final answer
    x = 15,833.18

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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.