Home / 11,077.12-15,286.20-6,109.12

Finding the Fourth Proportional to 11,077.12, 15,286.20 and 6,109.12

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Solution

The fourth proportional to 11,077.12, 15,286.20 and 6,109.12 is: 8,430.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,077.12 : 15,286.20 = 6,109.12 : x
  2. Step 2: Convert to fraction form
    11,077.12/15,286.20 = 6,109.12/x
  3. Step 3: Cross multiply
    11,077.12x = 15,286.20 × 6,109.12
  4. Step 4: Simplify right side
    11,077.12x = 93,385,230.14
  5. Step 5: Solve for x
    x = 93,385,230.14/11,077.12
  6. Step 6: Final answer
    x = 8,430.46

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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.