Home / 10,212.44-15,306.36-5,279.42

Finding the Fourth Proportional to 10,212.44, 15,306.36 and 5,279.42

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Solution

The fourth proportional to 10,212.44, 15,306.36 and 5,279.42 is: 7,912.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,212.44 : 15,306.36 = 5,279.42 : x
  2. Step 2: Convert to fraction form
    10,212.44/15,306.36 = 5,279.42/x
  3. Step 3: Cross multiply
    10,212.44x = 15,306.36 × 5,279.42
  4. Step 4: Simplify right side
    10,212.44x = 80,808,703.11
  5. Step 5: Solve for x
    x = 80,808,703.11/10,212.44
  6. Step 6: Final answer
    x = 7,912.77

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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.