Home / 12,882.02-19,324.19-3,997.40

Finding the Fourth Proportional to 12,882.02, 19,324.19 and 3,997.40

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Solution

The fourth proportional to 12,882.02, 19,324.19 and 3,997.40 is: 5,996.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,882.02 : 19,324.19 = 3,997.40 : x
  2. Step 2: Convert to fraction form
    12,882.02/19,324.19 = 3,997.40/x
  3. Step 3: Cross multiply
    12,882.02x = 19,324.19 × 3,997.40
  4. Step 4: Simplify right side
    12,882.02x = 77,246,430.48
  5. Step 5: Solve for x
    x = 77,246,430.48/12,882.02
  6. Step 6: Final answer
    x = 5,996.46

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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.