Home / 8,445.48-11,654.56-4,909.92

Finding the Fourth Proportional to 8,445.48, 11,654.56 and 4,909.92

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Solution

The fourth proportional to 8,445.48, 11,654.56 and 4,909.92 is: 6,775.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,445.48 : 11,654.56 = 4,909.92 : x
  2. Step 2: Convert to fraction form
    8,445.48/11,654.56 = 4,909.92/x
  3. Step 3: Cross multiply
    8,445.48x = 11,654.56 × 4,909.92
  4. Step 4: Simplify right side
    8,445.48x = 57,222,957.24
  5. Step 5: Solve for x
    x = 57,222,957.24/8,445.48
  6. Step 6: Final answer
    x = 6,775.57

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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.