Home / 13,011.31-19,517.96-5,110.02

Finding the Fourth Proportional to 13,011.31, 19,517.96 and 5,110.02

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Solution

The fourth proportional to 13,011.31, 19,517.96 and 5,110.02 is: 7,665.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,011.31 : 19,517.96 = 5,110.02 : x
  2. Step 2: Convert to fraction form
    13,011.31/19,517.96 = 5,110.02/x
  3. Step 3: Cross multiply
    13,011.31x = 19,517.96 × 5,110.02
  4. Step 4: Simplify right side
    13,011.31x = 99,737,067.22
  5. Step 5: Solve for x
    x = 99,737,067.22/13,011.31
  6. Step 6: Final answer
    x = 7,665.41

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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.