Home / 12,726.40-19,076.52-5,335.12

Finding the Fourth Proportional to 12,726.40, 19,076.52 and 5,335.12

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Solution

The fourth proportional to 12,726.40, 19,076.52 and 5,335.12 is: 7,997.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,726.40 : 19,076.52 = 5,335.12 : x
  2. Step 2: Convert to fraction form
    12,726.40/19,076.52 = 5,335.12/x
  3. Step 3: Cross multiply
    12,726.40x = 19,076.52 × 5,335.12
  4. Step 4: Simplify right side
    12,726.40x = 101,775,523.38
  5. Step 5: Solve for x
    x = 101,775,523.38/12,726.40
  6. Step 6: Final answer
    x = 7,997.20

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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.