Home / 10,313.10-15,469.71-2,521.89

Finding the Fourth Proportional to 10,313.10, 15,469.71 and 2,521.89

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Solution

The fourth proportional to 10,313.10, 15,469.71 and 2,521.89 is: 3,782.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,313.10 : 15,469.71 = 2,521.89 : x
  2. Step 2: Convert to fraction form
    10,313.10/15,469.71 = 2,521.89/x
  3. Step 3: Cross multiply
    10,313.10x = 15,469.71 × 2,521.89
  4. Step 4: Simplify right side
    10,313.10x = 39,012,906.95
  5. Step 5: Solve for x
    x = 39,012,906.95/10,313.10
  6. Step 6: Final answer
    x = 3,782.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.