Home / 10,645.26-15,975.22-3,719.76

Finding the Fourth Proportional to 10,645.26, 15,975.22 and 3,719.76

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Solution

The fourth proportional to 10,645.26, 15,975.22 and 3,719.76 is: 5,582.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,645.26 : 15,975.22 = 3,719.76 : x
  2. Step 2: Convert to fraction form
    10,645.26/15,975.22 = 3,719.76/x
  3. Step 3: Cross multiply
    10,645.26x = 15,975.22 × 3,719.76
  4. Step 4: Simplify right side
    10,645.26x = 59,423,984.35
  5. Step 5: Solve for x
    x = 59,423,984.35/10,645.26
  6. Step 6: Final answer
    x = 5,582.20

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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.