Home / 11,376.20-15,698.66-6,340.62

Finding the Fourth Proportional to 11,376.20, 15,698.66 and 6,340.62

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Solution

The fourth proportional to 11,376.20, 15,698.66 and 6,340.62 is: 8,749.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,376.20 : 15,698.66 = 6,340.62 : x
  2. Step 2: Convert to fraction form
    11,376.20/15,698.66 = 6,340.62/x
  3. Step 3: Cross multiply
    11,376.20x = 15,698.66 × 6,340.62
  4. Step 4: Simplify right side
    11,376.20x = 99,539,205.87
  5. Step 5: Solve for x
    x = 99,539,205.87/11,376.20
  6. Step 6: Final answer
    x = 8,749.78

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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.