Home / 8,540.01-12,815.78-2,993.40

Finding the Fourth Proportional to 8,540.01, 12,815.78 and 2,993.40

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Solution

The fourth proportional to 8,540.01, 12,815.78 and 2,993.40 is: 4,492.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,540.01 : 12,815.78 = 2,993.40 : x
  2. Step 2: Convert to fraction form
    8,540.01/12,815.78 = 2,993.40/x
  3. Step 3: Cross multiply
    8,540.01x = 12,815.78 × 2,993.40
  4. Step 4: Simplify right side
    8,540.01x = 38,362,755.85
  5. Step 5: Solve for x
    x = 38,362,755.85/8,540.01
  6. Step 6: Final answer
    x = 4,492.12

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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.