Home / 11,191.32-15,435.48-8,206.08

Finding the Fourth Proportional to 11,191.32, 15,435.48 and 8,206.08

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Solution

The fourth proportional to 11,191.32, 15,435.48 and 8,206.08 is: 11,318.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191.32 : 15,435.48 = 8,206.08 : x
  2. Step 2: Convert to fraction form
    11,191.32/15,435.48 = 8,206.08/x
  3. Step 3: Cross multiply
    11,191.32x = 15,435.48 × 8,206.08
  4. Step 4: Simplify right side
    11,191.32x = 126,664,783.72
  5. Step 5: Solve for x
    x = 126,664,783.72/11,191.32
  6. Step 6: Final answer
    x = 11,318.13

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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.