Home / 8,087.61-12,131.47-2,822.60

Finding the Fourth Proportional to 8,087.61, 12,131.47 and 2,822.60

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Solution

The fourth proportional to 8,087.61, 12,131.47 and 2,822.60 is: 4,233.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,087.61 : 12,131.47 = 2,822.60 : x
  2. Step 2: Convert to fraction form
    8,087.61/12,131.47 = 2,822.60/x
  3. Step 3: Cross multiply
    8,087.61x = 12,131.47 × 2,822.60
  4. Step 4: Simplify right side
    8,087.61x = 34,242,252.84
  5. Step 5: Solve for x
    x = 34,242,252.84/8,087.61
  6. Step 6: Final answer
    x = 4,233.92

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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.