Home / 13,572.06-18,728.43-8,266.02

Finding the Fourth Proportional to 13,572.06, 18,728.43 and 8,266.02

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Solution

The fourth proportional to 13,572.06, 18,728.43 and 8,266.02 is: 11,406.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.06 : 18,728.43 = 8,266.02 : x
  2. Step 2: Convert to fraction form
    13,572.06/18,728.43 = 8,266.02/x
  3. Step 3: Cross multiply
    13,572.06x = 18,728.43 × 8,266.02
  4. Step 4: Simplify right side
    13,572.06x = 154,809,576.95
  5. Step 5: Solve for x
    x = 154,809,576.95/13,572.06
  6. Step 6: Final answer
    x = 11,406.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.