Home / 8,172.54-11,264.40-6,257.70

Finding the Fourth Proportional to 8,172.54, 11,264.40 and 6,257.70

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Solution

The fourth proportional to 8,172.54, 11,264.40 and 6,257.70 is: 8,625.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.54 : 11,264.40 = 6,257.70 : x
  2. Step 2: Convert to fraction form
    8,172.54/11,264.40 = 6,257.70/x
  3. Step 3: Cross multiply
    8,172.54x = 11,264.40 × 6,257.70
  4. Step 4: Simplify right side
    8,172.54x = 70,489,235.88
  5. Step 5: Solve for x
    x = 70,489,235.88/8,172.54
  6. Step 6: Final answer
    x = 8,625.13

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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.