Home / 12,881.61-19,325.17-3,996.75

Finding the Fourth Proportional to 12,881.61, 19,325.17 and 3,996.75

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Solution

The fourth proportional to 12,881.61, 19,325.17 and 3,996.75 is: 5,995.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,881.61 : 19,325.17 = 3,996.75 : x
  2. Step 2: Convert to fraction form
    12,881.61/19,325.17 = 3,996.75/x
  3. Step 3: Cross multiply
    12,881.61x = 19,325.17 × 3,996.75
  4. Step 4: Simplify right side
    12,881.61x = 77,237,883.19
  5. Step 5: Solve for x
    x = 77,237,883.19/12,881.61
  6. Step 6: Final answer
    x = 5,995.98

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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.