Home / 10,240.56-15,359.67-3,220.29

Finding the Fourth Proportional to 10,240.56, 15,359.67 and 3,220.29

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Solution

The fourth proportional to 10,240.56, 15,359.67 and 3,220.29 is: 4,830.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,240.56 : 15,359.67 = 3,220.29 : x
  2. Step 2: Convert to fraction form
    10,240.56/15,359.67 = 3,220.29/x
  3. Step 3: Cross multiply
    10,240.56x = 15,359.67 × 3,220.29
  4. Step 4: Simplify right side
    10,240.56x = 49,462,591.70
  5. Step 5: Solve for x
    x = 49,462,591.70/10,240.56
  6. Step 6: Final answer
    x = 4,830.07

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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.