Home / 15,757.27-21,744.05-8,683.74

Finding the Fourth Proportional to 15,757.27, 21,744.05 and 8,683.74

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Solution

The fourth proportional to 15,757.27, 21,744.05 and 8,683.74 is: 11,983.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,757.27 : 21,744.05 = 8,683.74 : x
  2. Step 2: Convert to fraction form
    15,757.27/21,744.05 = 8,683.74/x
  3. Step 3: Cross multiply
    15,757.27x = 21,744.05 × 8,683.74
  4. Step 4: Simplify right side
    15,757.27x = 188,819,633.33
  5. Step 5: Solve for x
    x = 188,819,633.33/15,757.27
  6. Step 6: Final answer
    x = 11,983.02

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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.