Home / 10,212.19-15,319.23-3,972.67

Finding the Fourth Proportional to 10,212.19, 15,319.23 and 3,972.67

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Solution

The fourth proportional to 10,212.19, 15,319.23 and 3,972.67 is: 5,959.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,212.19 : 15,319.23 = 3,972.67 : x
  2. Step 2: Convert to fraction form
    10,212.19/15,319.23 = 3,972.67/x
  3. Step 3: Cross multiply
    10,212.19x = 15,319.23 × 3,972.67
  4. Step 4: Simplify right side
    10,212.19x = 60,858,245.44
  5. Step 5: Solve for x
    x = 60,858,245.44/10,212.19
  6. Step 6: Final answer
    x = 5,959.37

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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.