Home / 8,083.88-11,176.20-7,099.40

Finding the Fourth Proportional to 8,083.88, 11,176.20 and 7,099.40

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Solution

The fourth proportional to 8,083.88, 11,176.20 and 7,099.40 is: 9,815.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,083.88 : 11,176.20 = 7,099.40 : x
  2. Step 2: Convert to fraction form
    8,083.88/11,176.20 = 7,099.40/x
  3. Step 3: Cross multiply
    8,083.88x = 11,176.20 × 7,099.40
  4. Step 4: Simplify right side
    8,083.88x = 79,344,314.28
  5. Step 5: Solve for x
    x = 79,344,314.28/8,083.88
  6. Step 6: Final answer
    x = 9,815.13

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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.