Home / 15,212.96-20,993.66-8,498.69

Finding the Fourth Proportional to 15,212.96, 20,993.66 and 8,498.69

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Solution

The fourth proportional to 15,212.96, 20,993.66 and 8,498.69 is: 11,728.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,212.96 : 20,993.66 = 8,498.69 : x
  2. Step 2: Convert to fraction form
    15,212.96/20,993.66 = 8,498.69/x
  3. Step 3: Cross multiply
    15,212.96x = 20,993.66 × 8,498.69
  4. Step 4: Simplify right side
    15,212.96x = 178,418,460.84
  5. Step 5: Solve for x
    x = 178,418,460.84/15,212.96
  6. Step 6: Final answer
    x = 11,728.06

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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.