Home / 15,064.65-20,789.39-8,350.36

Finding the Fourth Proportional to 15,064.65, 20,789.39 and 8,350.36

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Solution

The fourth proportional to 15,064.65, 20,789.39 and 8,350.36 is: 11,523.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,064.65 : 20,789.39 = 8,350.36 : x
  2. Step 2: Convert to fraction form
    15,064.65/20,789.39 = 8,350.36/x
  3. Step 3: Cross multiply
    15,064.65x = 20,789.39 × 8,350.36
  4. Step 4: Simplify right side
    15,064.65x = 173,598,859.58
  5. Step 5: Solve for x
    x = 173,598,859.58/15,064.65
  6. Step 6: Final answer
    x = 11,523.59

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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.