Home / 11,257.31-15,534.89-6,221.54

Finding the Fourth Proportional to 11,257.31, 15,534.89 and 6,221.54

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Solution

The fourth proportional to 11,257.31, 15,534.89 and 6,221.54 is: 8,585.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,257.31 : 15,534.89 = 6,221.54 : x
  2. Step 2: Convert to fraction form
    11,257.31/15,534.89 = 6,221.54/x
  3. Step 3: Cross multiply
    11,257.31x = 15,534.89 × 6,221.54
  4. Step 4: Simplify right side
    11,257.31x = 96,650,970.59
  5. Step 5: Solve for x
    x = 96,650,970.59/11,257.31
  6. Step 6: Final answer
    x = 8,585.62

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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.