Home / 8,261.61-12,388.29-2,996.40

Finding the Fourth Proportional to 8,261.61, 12,388.29 and 2,996.40

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Solution

The fourth proportional to 8,261.61, 12,388.29 and 2,996.40 is: 4,493.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,261.61 : 12,388.29 = 2,996.40 : x
  2. Step 2: Convert to fraction form
    8,261.61/12,388.29 = 2,996.40/x
  3. Step 3: Cross multiply
    8,261.61x = 12,388.29 × 2,996.40
  4. Step 4: Simplify right side
    8,261.61x = 37,120,272.16
  5. Step 5: Solve for x
    x = 37,120,272.16/8,261.61
  6. Step 6: Final answer
    x = 4,493.10

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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.