Home / 9,401.45-12,974.51-5,209.61

Finding the Fourth Proportional to 9,401.45, 12,974.51 and 5,209.61

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Solution

The fourth proportional to 9,401.45, 12,974.51 and 5,209.61 is: 7,189.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,401.45 : 12,974.51 = 5,209.61 : x
  2. Step 2: Convert to fraction form
    9,401.45/12,974.51 = 5,209.61/x
  3. Step 3: Cross multiply
    9,401.45x = 12,974.51 × 5,209.61
  4. Step 4: Simplify right side
    9,401.45x = 67,592,085.19
  5. Step 5: Solve for x
    x = 67,592,085.19/9,401.45
  6. Step 6: Final answer
    x = 7,189.54

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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.