Home / 11,173.70-15,419.84-6,138.04

Finding the Fourth Proportional to 11,173.70, 15,419.84 and 6,138.04

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Solution

The fourth proportional to 11,173.70, 15,419.84 and 6,138.04 is: 8,470.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,173.70 : 15,419.84 = 6,138.04 : x
  2. Step 2: Convert to fraction form
    11,173.70/15,419.84 = 6,138.04/x
  3. Step 3: Cross multiply
    11,173.70x = 15,419.84 × 6,138.04
  4. Step 4: Simplify right side
    11,173.70x = 94,647,594.71
  5. Step 5: Solve for x
    x = 94,647,594.71/11,173.70
  6. Step 6: Final answer
    x = 8,470.57

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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.