Home / 10,445.52-15,668.66-3,425.70

Finding the Fourth Proportional to 10,445.52, 15,668.66 and 3,425.70

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Solution

The fourth proportional to 10,445.52, 15,668.66 and 3,425.70 is: 5,138.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,445.52 : 15,668.66 = 3,425.70 : x
  2. Step 2: Convert to fraction form
    10,445.52/15,668.66 = 3,425.70/x
  3. Step 3: Cross multiply
    10,445.52x = 15,668.66 × 3,425.70
  4. Step 4: Simplify right side
    10,445.52x = 53,676,111.43
  5. Step 5: Solve for x
    x = 53,676,111.43/10,445.52
  6. Step 6: Final answer
    x = 5,138.67

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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.