Home / 19,413-26,789.94-11,031.12

Finding the Fourth Proportional to 19,413, 26,789.94 and 11,031.12

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Solution

The fourth proportional to 19,413, 26,789.94 and 11,031.12 is: 15,222.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,413 : 26,789.94 = 11,031.12 : x
  2. Step 2: Convert to fraction form
    19,413/26,789.94 = 11,031.12/x
  3. Step 3: Cross multiply
    19,413x = 26,789.94 × 11,031.12
  4. Step 4: Simplify right side
    19,413x = 295,523,042.93
  5. Step 5: Solve for x
    x = 295,523,042.93/19,413
  6. Step 6: Final answer
    x = 15,222.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.