Home / 8,061.97-12,090.65-3,130.55

Finding the Fourth Proportional to 8,061.97, 12,090.65 and 3,130.55

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Solution

The fourth proportional to 8,061.97, 12,090.65 and 3,130.55 is: 4,694.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,061.97 : 12,090.65 = 3,130.55 : x
  2. Step 2: Convert to fraction form
    8,061.97/12,090.65 = 3,130.55/x
  3. Step 3: Cross multiply
    8,061.97x = 12,090.65 × 3,130.55
  4. Step 4: Simplify right side
    8,061.97x = 37,850,384.36
  5. Step 5: Solve for x
    x = 37,850,384.36/8,061.97
  6. Step 6: Final answer
    x = 4,694.93

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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.