Home / 10,007.15-15,023.48-8,161.86

Finding the Fourth Proportional to 10,007.15, 15,023.48 and 8,161.86

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Solution

The fourth proportional to 10,007.15, 15,023.48 and 8,161.86 is: 12,253.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,007.15 : 15,023.48 = 8,161.86 : x
  2. Step 2: Convert to fraction form
    10,007.15/15,023.48 = 8,161.86/x
  3. Step 3: Cross multiply
    10,007.15x = 15,023.48 × 8,161.86
  4. Step 4: Simplify right side
    10,007.15x = 122,619,556.00
  5. Step 5: Solve for x
    x = 122,619,556.00/10,007.15
  6. Step 6: Final answer
    x = 12,253.20

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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.