Home / 11,150.84-15,387.99-6,115.04

Finding the Fourth Proportional to 11,150.84, 15,387.99 and 6,115.04

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Solution

The fourth proportional to 11,150.84, 15,387.99 and 6,115.04 is: 8,438.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,150.84 : 15,387.99 = 6,115.04 : x
  2. Step 2: Convert to fraction form
    11,150.84/15,387.99 = 6,115.04/x
  3. Step 3: Cross multiply
    11,150.84x = 15,387.99 × 6,115.04
  4. Step 4: Simplify right side
    11,150.84x = 94,098,097.43
  5. Step 5: Solve for x
    x = 94,098,097.43/11,150.84
  6. Step 6: Final answer
    x = 8,438.66

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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.