Home / 26,410.45-39,617.76-7,690.78

Finding the Fourth Proportional to 26,410.45, 39,617.76 and 7,690.78

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Solution

The fourth proportional to 26,410.45, 39,617.76 and 7,690.78 is: 11,536.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,410.45 : 39,617.76 = 7,690.78 : x
  2. Step 2: Convert to fraction form
    26,410.45/39,617.76 = 7,690.78/x
  3. Step 3: Cross multiply
    26,410.45x = 39,617.76 × 7,690.78
  4. Step 4: Simplify right side
    26,410.45x = 304,691,476.25
  5. Step 5: Solve for x
    x = 304,691,476.25/26,410.45
  6. Step 6: Final answer
    x = 11,536.78

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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.