Home / 18,942.70-26,139.57-10,983.58

Finding the Fourth Proportional to 18,942.70, 26,139.57 and 10,983.58

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Solution

The fourth proportional to 18,942.70, 26,139.57 and 10,983.58 is: 15,156.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,942.70 : 26,139.57 = 10,983.58 : x
  2. Step 2: Convert to fraction form
    18,942.70/26,139.57 = 10,983.58/x
  3. Step 3: Cross multiply
    18,942.70x = 26,139.57 × 10,983.58
  4. Step 4: Simplify right side
    18,942.70x = 287,106,058.26
  5. Step 5: Solve for x
    x = 287,106,058.26/18,942.70
  6. Step 6: Final answer
    x = 15,156.55

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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.