Home / 7,451.32-11,178.38-3,556

Finding the Fourth Proportional to 7,451.32, 11,178.38 and 3,556

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Solution

The fourth proportional to 7,451.32, 11,178.38 and 3,556 is: 5,334.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,451.32 : 11,178.38 = 3,556 : x
  2. Step 2: Convert to fraction form
    7,451.32/11,178.38 = 3,556/x
  3. Step 3: Cross multiply
    7,451.32x = 11,178.38 × 3,556
  4. Step 4: Simplify right side
    7,451.32x = 39,750,319.28
  5. Step 5: Solve for x
    x = 39,750,319.28/7,451.32
  6. Step 6: Final answer
    x = 5,334.67

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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.