Home / 14,886.76-20,542.82-8,171.08

Finding the Fourth Proportional to 14,886.76, 20,542.82 and 8,171.08

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Solution

The fourth proportional to 14,886.76, 20,542.82 and 8,171.08 is: 11,275.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,886.76 : 20,542.82 = 8,171.08 : x
  2. Step 2: Convert to fraction form
    14,886.76/20,542.82 = 8,171.08/x
  3. Step 3: Cross multiply
    14,886.76x = 20,542.82 × 8,171.08
  4. Step 4: Simplify right side
    14,886.76x = 167,857,025.65
  5. Step 5: Solve for x
    x = 167,857,025.65/14,886.76
  6. Step 6: Final answer
    x = 11,275.59

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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.