Home / 8,540.47-12,811.09-2,616.93

Finding the Fourth Proportional to 8,540.47, 12,811.09 and 2,616.93

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Solution

The fourth proportional to 8,540.47, 12,811.09 and 2,616.93 is: 3,925.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,540.47 : 12,811.09 = 2,616.93 : x
  2. Step 2: Convert to fraction form
    8,540.47/12,811.09 = 2,616.93/x
  3. Step 3: Cross multiply
    8,540.47x = 12,811.09 × 2,616.93
  4. Step 4: Simplify right side
    8,540.47x = 33,525,725.75
  5. Step 5: Solve for x
    x = 33,525,725.75/8,540.47
  6. Step 6: Final answer
    x = 3,925.51

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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.