Home / 11,295.78-15,589.20-6,260.70

Finding the Fourth Proportional to 11,295.78, 15,589.20 and 6,260.70

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Solution

The fourth proportional to 11,295.78, 15,589.20 and 6,260.70 is: 8,640.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,295.78 : 15,589.20 = 6,260.70 : x
  2. Step 2: Convert to fraction form
    11,295.78/15,589.20 = 6,260.70/x
  3. Step 3: Cross multiply
    11,295.78x = 15,589.20 × 6,260.70
  4. Step 4: Simplify right side
    11,295.78x = 97,599,304.44
  5. Step 5: Solve for x
    x = 97,599,304.44/11,295.78
  6. Step 6: Final answer
    x = 8,640.33

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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.