Home / 18,918.88-26,104.40-10,535.36

Finding the Fourth Proportional to 18,918.88, 26,104.40 and 10,535.36

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Solution

The fourth proportional to 18,918.88, 26,104.40 and 10,535.36 is: 14,536.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,918.88 : 26,104.40 = 10,535.36 : x
  2. Step 2: Convert to fraction form
    18,918.88/26,104.40 = 10,535.36/x
  3. Step 3: Cross multiply
    18,918.88x = 26,104.40 × 10,535.36
  4. Step 4: Simplify right side
    18,918.88x = 275,019,251.58
  5. Step 5: Solve for x
    x = 275,019,251.58/18,918.88
  6. Step 6: Final answer
    x = 14,536.76

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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.