Home / 10,418.76-15,628.14-5,152.68

Finding the Fourth Proportional to 10,418.76, 15,628.14 and 5,152.68

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Solution

The fourth proportional to 10,418.76, 15,628.14 and 5,152.68 is: 7,729.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,418.76 : 15,628.14 = 5,152.68 : x
  2. Step 2: Convert to fraction form
    10,418.76/15,628.14 = 5,152.68/x
  3. Step 3: Cross multiply
    10,418.76x = 15,628.14 × 5,152.68
  4. Step 4: Simplify right side
    10,418.76x = 80,526,804.42
  5. Step 5: Solve for x
    x = 80,526,804.42/10,418.76
  6. Step 6: Final answer
    x = 7,729.02

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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.