Home / 15,192.18-20,964.50-11,211.84

Finding the Fourth Proportional to 15,192.18, 20,964.50 and 11,211.84

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Solution

The fourth proportional to 15,192.18, 20,964.50 and 11,211.84 is: 15,471.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,192.18 : 20,964.50 = 11,211.84 : x
  2. Step 2: Convert to fraction form
    15,192.18/20,964.50 = 11,211.84/x
  3. Step 3: Cross multiply
    15,192.18x = 20,964.50 × 11,211.84
  4. Step 4: Simplify right side
    15,192.18x = 235,050,563.62
  5. Step 5: Solve for x
    x = 235,050,563.62/15,192.18
  6. Step 6: Final answer
    x = 15,471.81

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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.