Home / 11,010.60-15,207.30-8,188.20

Finding the Fourth Proportional to 11,010.60, 15,207.30 and 8,188.20

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Solution

The fourth proportional to 11,010.60, 15,207.30 and 8,188.20 is: 11,309.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,010.60 : 15,207.30 = 8,188.20 : x
  2. Step 2: Convert to fraction form
    11,010.60/15,207.30 = 8,188.20/x
  3. Step 3: Cross multiply
    11,010.60x = 15,207.30 × 8,188.20
  4. Step 4: Simplify right side
    11,010.60x = 124,520,413.86
  5. Step 5: Solve for x
    x = 124,520,413.86/11,010.60
  6. Step 6: Final answer
    x = 11,309.14

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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.