Home / 8,109.29-11,191.60-5,084.90

Finding the Fourth Proportional to 8,109.29, 11,191.60 and 5,084.90

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Solution

The fourth proportional to 8,109.29, 11,191.60 and 5,084.90 is: 7,017.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.29 : 11,191.60 = 5,084.90 : x
  2. Step 2: Convert to fraction form
    8,109.29/11,191.60 = 5,084.90/x
  3. Step 3: Cross multiply
    8,109.29x = 11,191.60 × 5,084.90
  4. Step 4: Simplify right side
    8,109.29x = 56,908,110.88
  5. Step 5: Solve for x
    x = 56,908,110.88/8,109.29
  6. Step 6: Final answer
    x = 7,017.64

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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.