Home / 13,351.97-18,427.10-7,686.93

Finding the Fourth Proportional to 13,351.97, 18,427.10 and 7,686.93

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Solution

The fourth proportional to 13,351.97, 18,427.10 and 7,686.93 is: 10,608.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.97 : 18,427.10 = 7,686.93 : x
  2. Step 2: Convert to fraction form
    13,351.97/18,427.10 = 7,686.93/x
  3. Step 3: Cross multiply
    13,351.97x = 18,427.10 × 7,686.93
  4. Step 4: Simplify right side
    13,351.97x = 141,647,858.47
  5. Step 5: Solve for x
    x = 141,647,858.47/13,351.97
  6. Step 6: Final answer
    x = 10,608.76

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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.