Home / 18,869.80-26,043.24-13,582.12

Finding the Fourth Proportional to 18,869.80, 26,043.24 and 13,582.12

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Solution

The fourth proportional to 18,869.80, 26,043.24 and 13,582.12 is: 18,745.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,869.80 : 26,043.24 = 13,582.12 : x
  2. Step 2: Convert to fraction form
    18,869.80/26,043.24 = 13,582.12/x
  3. Step 3: Cross multiply
    18,869.80x = 26,043.24 × 13,582.12
  4. Step 4: Simplify right side
    18,869.80x = 353,722,410.87
  5. Step 5: Solve for x
    x = 353,722,410.87/18,869.80
  6. Step 6: Final answer
    x = 18,745.42

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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.