Home / 13,942.52-19,261.26-10,978.04

Finding the Fourth Proportional to 13,942.52, 19,261.26 and 10,978.04

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Solution

The fourth proportional to 13,942.52, 19,261.26 and 10,978.04 is: 15,165.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,942.52 : 19,261.26 = 10,978.04 : x
  2. Step 2: Convert to fraction form
    13,942.52/19,261.26 = 10,978.04/x
  3. Step 3: Cross multiply
    13,942.52x = 19,261.26 × 10,978.04
  4. Step 4: Simplify right side
    13,942.52x = 211,450,882.73
  5. Step 5: Solve for x
    x = 211,450,882.73/13,942.52
  6. Step 6: Final answer
    x = 15,165.90

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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.