Home / 11,257.39-15,534.76-6,478.87

Finding the Fourth Proportional to 11,257.39, 15,534.76 and 6,478.87

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Solution

The fourth proportional to 11,257.39, 15,534.76 and 6,478.87 is: 8,940.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,257.39 : 15,534.76 = 6,478.87 : x
  2. Step 2: Convert to fraction form
    11,257.39/15,534.76 = 6,478.87/x
  3. Step 3: Cross multiply
    11,257.39x = 15,534.76 × 6,478.87
  4. Step 4: Simplify right side
    11,257.39x = 100,647,690.52
  5. Step 5: Solve for x
    x = 100,647,690.52/11,257.39
  6. Step 6: Final answer
    x = 8,940.59

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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.