Home / 12,486.60-18,724.26-6,641.96

Finding the Fourth Proportional to 12,486.60, 18,724.26 and 6,641.96

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Solution

The fourth proportional to 12,486.60, 18,724.26 and 6,641.96 is: 9,959.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,486.60 : 18,724.26 = 6,641.96 : x
  2. Step 2: Convert to fraction form
    12,486.60/18,724.26 = 6,641.96/x
  3. Step 3: Cross multiply
    12,486.60x = 18,724.26 × 6,641.96
  4. Step 4: Simplify right side
    12,486.60x = 124,365,785.95
  5. Step 5: Solve for x
    x = 124,365,785.95/12,486.60
  6. Step 6: Final answer
    x = 9,959.94

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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.