Home / 10,481.40-15,697.80-7,176.60

Finding the Fourth Proportional to 10,481.40, 15,697.80 and 7,176.60

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Solution

The fourth proportional to 10,481.40, 15,697.80 and 7,176.60 is: 10,748.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,481.40 : 15,697.80 = 7,176.60 : x
  2. Step 2: Convert to fraction form
    10,481.40/15,697.80 = 7,176.60/x
  3. Step 3: Cross multiply
    10,481.40x = 15,697.80 × 7,176.60
  4. Step 4: Simplify right side
    10,481.40x = 112,656,831.48
  5. Step 5: Solve for x
    x = 112,656,831.48/10,481.40
  6. Step 6: Final answer
    x = 10,748.26

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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.