Home / 18,943.54-26,147.82-10,987.72

Finding the Fourth Proportional to 18,943.54, 26,147.82 and 10,987.72

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Solution

The fourth proportional to 18,943.54, 26,147.82 and 10,987.72 is: 15,166.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,943.54 : 26,147.82 = 10,987.72 : x
  2. Step 2: Convert to fraction form
    18,943.54/26,147.82 = 10,987.72/x
  3. Step 3: Cross multiply
    18,943.54x = 26,147.82 × 10,987.72
  4. Step 4: Simplify right side
    18,943.54x = 287,304,924.77
  5. Step 5: Solve for x
    x = 287,304,924.77/18,943.54
  6. Step 6: Final answer
    x = 15,166.38

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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.