Home / 11,191.25-15,444.22-6,155.78

Finding the Fourth Proportional to 11,191.25, 15,444.22 and 6,155.78

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Solution

The fourth proportional to 11,191.25, 15,444.22 and 6,155.78 is: 8,495.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191.25 : 15,444.22 = 6,155.78 : x
  2. Step 2: Convert to fraction form
    11,191.25/15,444.22 = 6,155.78/x
  3. Step 3: Cross multiply
    11,191.25x = 15,444.22 × 6,155.78
  4. Step 4: Simplify right side
    11,191.25x = 95,071,226.40
  5. Step 5: Solve for x
    x = 95,071,226.40/11,191.25
  6. Step 6: Final answer
    x = 8,495.14

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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.