Home / 26,111.80-39,159.78-7,390.36

Finding the Fourth Proportional to 26,111.80, 39,159.78 and 7,390.36

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Solution

The fourth proportional to 26,111.80, 39,159.78 and 7,390.36 is: 11,083.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,111.80 : 39,159.78 = 7,390.36 : x
  2. Step 2: Convert to fraction form
    26,111.80/39,159.78 = 7,390.36/x
  3. Step 3: Cross multiply
    26,111.80x = 39,159.78 × 7,390.36
  4. Step 4: Simplify right side
    26,111.80x = 289,404,871.72
  5. Step 5: Solve for x
    x = 289,404,871.72/26,111.80
  6. Step 6: Final answer
    x = 11,083.30

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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.