Home / 10,259.31-15,391.05-3,240.42

Finding the Fourth Proportional to 10,259.31, 15,391.05 and 3,240.42

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Solution

The fourth proportional to 10,259.31, 15,391.05 and 3,240.42 is: 4,861.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,259.31 : 15,391.05 = 3,240.42 : x
  2. Step 2: Convert to fraction form
    10,259.31/15,391.05 = 3,240.42/x
  3. Step 3: Cross multiply
    10,259.31x = 15,391.05 × 3,240.42
  4. Step 4: Simplify right side
    10,259.31x = 49,873,466.24
  5. Step 5: Solve for x
    x = 49,873,466.24/10,259.31
  6. Step 6: Final answer
    x = 4,861.29

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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.