Home / 12,111.40-18,172.26-5,876.02

Finding the Fourth Proportional to 12,111.40, 18,172.26 and 5,876.02

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Solution

The fourth proportional to 12,111.40, 18,172.26 and 5,876.02 is: 8,816.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,111.40 : 18,172.26 = 5,876.02 : x
  2. Step 2: Convert to fraction form
    12,111.40/18,172.26 = 5,876.02/x
  3. Step 3: Cross multiply
    12,111.40x = 18,172.26 × 5,876.02
  4. Step 4: Simplify right side
    12,111.40x = 106,780,563.21
  5. Step 5: Solve for x
    x = 106,780,563.21/12,111.40
  6. Step 6: Final answer
    x = 8,816.53

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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.