Home / 11,003.88-15,191.19-8,480.46

Finding the Fourth Proportional to 11,003.88, 15,191.19 and 8,480.46

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Solution

The fourth proportional to 11,003.88, 15,191.19 and 8,480.46 is: 11,707.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,003.88 : 15,191.19 = 8,480.46 : x
  2. Step 2: Convert to fraction form
    11,003.88/15,191.19 = 8,480.46/x
  3. Step 3: Cross multiply
    11,003.88x = 15,191.19 × 8,480.46
  4. Step 4: Simplify right side
    11,003.88x = 128,828,279.15
  5. Step 5: Solve for x
    x = 128,828,279.15/11,003.88
  6. Step 6: Final answer
    x = 11,707.53

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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.