Home / 26,860.82-40,291.97-7,139.34

Finding the Fourth Proportional to 26,860.82, 40,291.97 and 7,139.34

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Solution

The fourth proportional to 26,860.82, 40,291.97 and 7,139.34 is: 10,709.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,860.82 : 40,291.97 = 7,139.34 : x
  2. Step 2: Convert to fraction form
    26,860.82/40,291.97 = 7,139.34/x
  3. Step 3: Cross multiply
    26,860.82x = 40,291.97 × 7,139.34
  4. Step 4: Simplify right side
    26,860.82x = 287,658,037.40
  5. Step 5: Solve for x
    x = 287,658,037.40/26,860.82
  6. Step 6: Final answer
    x = 10,709.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.