Home / 11,207.09-15,465.90-6,171.78

Finding the Fourth Proportional to 11,207.09, 15,465.90 and 6,171.78

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Solution

The fourth proportional to 11,207.09, 15,465.90 and 6,171.78 is: 8,517.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,207.09 : 15,465.90 = 6,171.78 : x
  2. Step 2: Convert to fraction form
    11,207.09/15,465.90 = 6,171.78/x
  3. Step 3: Cross multiply
    11,207.09x = 15,465.90 × 6,171.78
  4. Step 4: Simplify right side
    11,207.09x = 95,452,051.16
  5. Step 5: Solve for x
    x = 95,452,051.16/11,207.09
  6. Step 6: Final answer
    x = 8,517.11

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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.