Home / 15,757.34-21,744.86-8,683.61

Finding the Fourth Proportional to 15,757.34, 21,744.86 and 8,683.61

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Solution

The fourth proportional to 15,757.34, 21,744.86 and 8,683.61 is: 11,983.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,757.34 : 21,744.86 = 8,683.61 : x
  2. Step 2: Convert to fraction form
    15,757.34/21,744.86 = 8,683.61/x
  3. Step 3: Cross multiply
    15,757.34x = 21,744.86 × 8,683.61
  4. Step 4: Simplify right side
    15,757.34x = 188,823,731.60
  5. Step 5: Solve for x
    x = 188,823,731.60/15,757.34
  6. Step 6: Final answer
    x = 11,983.23

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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.