Home / 11,363.90-15,682.82-6,888.04

Finding the Fourth Proportional to 11,363.90, 15,682.82 and 6,888.04

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Solution

The fourth proportional to 11,363.90, 15,682.82 and 6,888.04 is: 9,505.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,363.90 : 15,682.82 = 6,888.04 : x
  2. Step 2: Convert to fraction form
    11,363.90/15,682.82 = 6,888.04/x
  3. Step 3: Cross multiply
    11,363.90x = 15,682.82 × 6,888.04
  4. Step 4: Simplify right side
    11,363.90x = 108,023,817.83
  5. Step 5: Solve for x
    x = 108,023,817.83/11,363.90
  6. Step 6: Final answer
    x = 9,505.88

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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.