Home / 11,010.22-15,190.40-6,291.16

Finding the Fourth Proportional to 11,010.22, 15,190.40 and 6,291.16

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Solution

The fourth proportional to 11,010.22, 15,190.40 and 6,291.16 is: 8,679.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,010.22 : 15,190.40 = 6,291.16 : x
  2. Step 2: Convert to fraction form
    11,010.22/15,190.40 = 6,291.16/x
  3. Step 3: Cross multiply
    11,010.22x = 15,190.40 × 6,291.16
  4. Step 4: Simplify right side
    11,010.22x = 95,565,236.86
  5. Step 5: Solve for x
    x = 95,565,236.86/11,010.22
  6. Step 6: Final answer
    x = 8,679.68

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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.