Home / 8,557.07-12,806.40-7,171.97

Finding the Fourth Proportional to 8,557.07, 12,806.40 and 7,171.97

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Solution

The fourth proportional to 8,557.07, 12,806.40 and 7,171.97 is: 10,733.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,557.07 : 12,806.40 = 7,171.97 : x
  2. Step 2: Convert to fraction form
    8,557.07/12,806.40 = 7,171.97/x
  3. Step 3: Cross multiply
    8,557.07x = 12,806.40 × 7,171.97
  4. Step 4: Simplify right side
    8,557.07x = 91,847,116.61
  5. Step 5: Solve for x
    x = 91,847,116.61/8,557.07
  6. Step 6: Final answer
    x = 10,733.48

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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.