Home / 26,486.46-39,710.46-12,439.26

Finding the Fourth Proportional to 26,486.46, 39,710.46 and 12,439.26

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Solution

The fourth proportional to 26,486.46, 39,710.46 and 12,439.26 is: 18,649.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,486.46 : 39,710.46 = 12,439.26 : x
  2. Step 2: Convert to fraction form
    26,486.46/39,710.46 = 12,439.26/x
  3. Step 3: Cross multiply
    26,486.46x = 39,710.46 × 12,439.26
  4. Step 4: Simplify right side
    26,486.46x = 493,968,736.66
  5. Step 5: Solve for x
    x = 493,968,736.66/26,486.46
  6. Step 6: Final answer
    x = 18,649.86

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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.