Home / 26,860.56-40,291.02-8,142.05

Finding the Fourth Proportional to 26,860.56, 40,291.02 and 8,142.05

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Solution

The fourth proportional to 26,860.56, 40,291.02 and 8,142.05 is: 12,213.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,860.56 : 40,291.02 = 8,142.05 : x
  2. Step 2: Convert to fraction form
    26,860.56/40,291.02 = 8,142.05/x
  3. Step 3: Cross multiply
    26,860.56x = 40,291.02 × 8,142.05
  4. Step 4: Simplify right side
    26,860.56x = 328,051,297.94
  5. Step 5: Solve for x
    x = 328,051,297.94/26,860.56
  6. Step 6: Final answer
    x = 12,213.12

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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.