Home / 13,848.78-19,112.37-7,882.38

Finding the Fourth Proportional to 13,848.78, 19,112.37 and 7,882.38

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Solution

The fourth proportional to 13,848.78, 19,112.37 and 7,882.38 is: 10,878.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,848.78 : 19,112.37 = 7,882.38 : x
  2. Step 2: Convert to fraction form
    13,848.78/19,112.37 = 7,882.38/x
  3. Step 3: Cross multiply
    13,848.78x = 19,112.37 × 7,882.38
  4. Step 4: Simplify right side
    13,848.78x = 150,650,963.04
  5. Step 5: Solve for x
    x = 150,650,963.04/13,848.78
  6. Step 6: Final answer
    x = 10,878.28

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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.