Home / 12,731.71-19,104.99-5,335.55

Finding the Fourth Proportional to 12,731.71, 19,104.99 and 5,335.55

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Solution

The fourth proportional to 12,731.71, 19,104.99 and 5,335.55 is: 8,006.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,731.71 : 19,104.99 = 5,335.55 : x
  2. Step 2: Convert to fraction form
    12,731.71/19,104.99 = 5,335.55/x
  3. Step 3: Cross multiply
    12,731.71x = 19,104.99 × 5,335.55
  4. Step 4: Simplify right side
    12,731.71x = 101,935,629.39
  5. Step 5: Solve for x
    x = 101,935,629.39/12,731.71
  6. Step 6: Final answer
    x = 8,006.44

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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.