Home / 15,375.15-21,206.34-9,401.94

Finding the Fourth Proportional to 15,375.15, 21,206.34 and 9,401.94

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Solution

The fourth proportional to 15,375.15, 21,206.34 and 9,401.94 is: 12,967.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,375.15 : 21,206.34 = 9,401.94 : x
  2. Step 2: Convert to fraction form
    15,375.15/21,206.34 = 9,401.94/x
  3. Step 3: Cross multiply
    15,375.15x = 21,206.34 × 9,401.94
  4. Step 4: Simplify right side
    15,375.15x = 199,380,736.30
  5. Step 5: Solve for x
    x = 199,380,736.30/15,375.15
  6. Step 6: Final answer
    x = 12,967.73

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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.