Home / 15,116.03-20,859.22-8,401.42

Finding the Fourth Proportional to 15,116.03, 20,859.22 and 8,401.42

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Solution

The fourth proportional to 15,116.03, 20,859.22 and 8,401.42 is: 11,593.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,116.03 : 20,859.22 = 8,401.42 : x
  2. Step 2: Convert to fraction form
    15,116.03/20,859.22 = 8,401.42/x
  3. Step 3: Cross multiply
    15,116.03x = 20,859.22 × 8,401.42
  4. Step 4: Simplify right side
    15,116.03x = 175,247,104.67
  5. Step 5: Solve for x
    x = 175,247,104.67/15,116.03
  6. Step 6: Final answer
    x = 11,593.46

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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.