Home / 8,440.96-11,645.20-5,458.56

Finding the Fourth Proportional to 8,440.96, 11,645.20 and 5,458.56

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Solution

The fourth proportional to 8,440.96, 11,645.20 and 5,458.56 is: 7,530.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,440.96 : 11,645.20 = 5,458.56 : x
  2. Step 2: Convert to fraction form
    8,440.96/11,645.20 = 5,458.56/x
  3. Step 3: Cross multiply
    8,440.96x = 11,645.20 × 5,458.56
  4. Step 4: Simplify right side
    8,440.96x = 63,566,022.91
  5. Step 5: Solve for x
    x = 63,566,022.91/8,440.96
  6. Step 6: Final answer
    x = 7,530.66

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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.