Home / 12,867.03-19,274.49-10,781.28

Finding the Fourth Proportional to 12,867.03, 19,274.49 and 10,781.28

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Solution

The fourth proportional to 12,867.03, 19,274.49 and 10,781.28 is: 16,150.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,867.03 : 19,274.49 = 10,781.28 : x
  2. Step 2: Convert to fraction form
    12,867.03/19,274.49 = 10,781.28/x
  3. Step 3: Cross multiply
    12,867.03x = 19,274.49 × 10,781.28
  4. Step 4: Simplify right side
    12,867.03x = 207,803,673.55
  5. Step 5: Solve for x
    x = 207,803,673.55/12,867.03
  6. Step 6: Final answer
    x = 16,150.09

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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.