Home / 8,148.90-11,245.53-4,791.86

Finding the Fourth Proportional to 8,148.90, 11,245.53 and 4,791.86

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Solution

The fourth proportional to 8,148.90, 11,245.53 and 4,791.86 is: 6,612.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,148.90 : 11,245.53 = 4,791.86 : x
  2. Step 2: Convert to fraction form
    8,148.90/11,245.53 = 4,791.86/x
  3. Step 3: Cross multiply
    8,148.90x = 11,245.53 × 4,791.86
  4. Step 4: Simplify right side
    8,148.90x = 53,887,009.30
  5. Step 5: Solve for x
    x = 53,887,009.30/8,148.90
  6. Step 6: Final answer
    x = 6,612.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.