Home / 12,935.52-19,365.84-10,961.28

Finding the Fourth Proportional to 12,935.52, 19,365.84 and 10,961.28

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Solution

The fourth proportional to 12,935.52, 19,365.84 and 10,961.28 is: 16,410.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,935.52 : 19,365.84 = 10,961.28 : x
  2. Step 2: Convert to fraction form
    12,935.52/19,365.84 = 10,961.28/x
  3. Step 3: Cross multiply
    12,935.52x = 19,365.84 × 10,961.28
  4. Step 4: Simplify right side
    12,935.52x = 212,274,394.68
  5. Step 5: Solve for x
    x = 212,274,394.68/12,935.52
  6. Step 6: Final answer
    x = 16,410.19

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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.