Home / 10,436.76-15,655.14-5,170.68

Finding the Fourth Proportional to 10,436.76, 15,655.14 and 5,170.68

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Solution

The fourth proportional to 10,436.76, 15,655.14 and 5,170.68 is: 7,756.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,436.76 : 15,655.14 = 5,170.68 : x
  2. Step 2: Convert to fraction form
    10,436.76/15,655.14 = 5,170.68/x
  3. Step 3: Cross multiply
    10,436.76x = 15,655.14 × 5,170.68
  4. Step 4: Simplify right side
    10,436.76x = 80,947,719.30
  5. Step 5: Solve for x
    x = 80,947,719.30/10,436.76
  6. Step 6: Final answer
    x = 7,756.02

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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.