Home / 12,839.15-19,268.45-8,669.27

Finding the Fourth Proportional to 12,839.15, 19,268.45 and 8,669.27

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Solution

The fourth proportional to 12,839.15, 19,268.45 and 8,669.27 is: 13,010.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,839.15 : 19,268.45 = 8,669.27 : x
  2. Step 2: Convert to fraction form
    12,839.15/19,268.45 = 8,669.27/x
  3. Step 3: Cross multiply
    12,839.15x = 19,268.45 × 8,669.27
  4. Step 4: Simplify right side
    12,839.15x = 167,043,395.53
  5. Step 5: Solve for x
    x = 167,043,395.53/12,839.15
  6. Step 6: Final answer
    x = 13,010.47

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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.