Home / 11,191.86-15,445.11-6,156.30

Finding the Fourth Proportional to 11,191.86, 15,445.11 and 6,156.30

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Solution

The fourth proportional to 11,191.86, 15,445.11 and 6,156.30 is: 8,495.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191.86 : 15,445.11 = 6,156.30 : x
  2. Step 2: Convert to fraction form
    11,191.86/15,445.11 = 6,156.30/x
  3. Step 3: Cross multiply
    11,191.86x = 15,445.11 × 6,156.30
  4. Step 4: Simplify right side
    11,191.86x = 95,084,730.69
  5. Step 5: Solve for x
    x = 95,084,730.69/11,191.86
  6. Step 6: Final answer
    x = 8,495.88

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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.