Home / 11,179.70-15,428.25-6,144.40

Finding the Fourth Proportional to 11,179.70, 15,428.25 and 6,144.40

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Solution

The fourth proportional to 11,179.70, 15,428.25 and 6,144.40 is: 8,479.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,179.70 : 15,428.25 = 6,144.40 : x
  2. Step 2: Convert to fraction form
    11,179.70/15,428.25 = 6,144.40/x
  3. Step 3: Cross multiply
    11,179.70x = 15,428.25 × 6,144.40
  4. Step 4: Simplify right side
    11,179.70x = 94,797,262.16
  5. Step 5: Solve for x
    x = 94,797,262.16/11,179.70
  6. Step 6: Final answer
    x = 8,479.41

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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.