Home / 11,111.90-15,334.85-6,634.62

Finding the Fourth Proportional to 11,111.90, 15,334.85 and 6,634.62

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Solution

The fourth proportional to 11,111.90, 15,334.85 and 6,634.62 is: 9,156.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,111.90 : 15,334.85 = 6,634.62 : x
  2. Step 2: Convert to fraction form
    11,111.90/15,334.85 = 6,634.62/x
  3. Step 3: Cross multiply
    11,111.90x = 15,334.85 × 6,634.62
  4. Step 4: Simplify right side
    11,111.90x = 101,740,919.09
  5. Step 5: Solve for x
    x = 101,740,919.09/11,111.90
  6. Step 6: Final answer
    x = 9,156.04

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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.