Home / 15,179.34-20,947.67-8,465.55

Finding the Fourth Proportional to 15,179.34, 20,947.67 and 8,465.55

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Solution

The fourth proportional to 15,179.34, 20,947.67 and 8,465.55 is: 11,682.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,179.34 : 20,947.67 = 8,465.55 : x
  2. Step 2: Convert to fraction form
    15,179.34/20,947.67 = 8,465.55/x
  3. Step 3: Cross multiply
    15,179.34x = 20,947.67 × 8,465.55
  4. Step 4: Simplify right side
    15,179.34x = 177,333,505.44
  5. Step 5: Solve for x
    x = 177,333,505.44/15,179.34
  6. Step 6: Final answer
    x = 11,682.56

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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.