Home / 8,091.60-12,137.40-2,545.32

Finding the Fourth Proportional to 8,091.60, 12,137.40 and 2,545.32

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Solution

The fourth proportional to 8,091.60, 12,137.40 and 2,545.32 is: 3,817.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,091.60 : 12,137.40 = 2,545.32 : x
  2. Step 2: Convert to fraction form
    8,091.60/12,137.40 = 2,545.32/x
  3. Step 3: Cross multiply
    8,091.60x = 12,137.40 × 2,545.32
  4. Step 4: Simplify right side
    8,091.60x = 30,893,566.97
  5. Step 5: Solve for x
    x = 30,893,566.97/8,091.60
  6. Step 6: Final answer
    x = 3,817.98

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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.