Home / 26,709.36-40,065.06-7,989.66

Finding the Fourth Proportional to 26,709.36, 40,065.06 and 7,989.66

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Solution

The fourth proportional to 26,709.36, 40,065.06 and 7,989.66 is: 11,984.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,709.36 : 40,065.06 = 7,989.66 : x
  2. Step 2: Convert to fraction form
    26,709.36/40,065.06 = 7,989.66/x
  3. Step 3: Cross multiply
    26,709.36x = 40,065.06 × 7,989.66
  4. Step 4: Simplify right side
    26,709.36x = 320,106,207.28
  5. Step 5: Solve for x
    x = 320,106,207.28/26,709.36
  6. Step 6: Final answer
    x = 11,984.80

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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.