Home / 12,487.06-18,747.06-11,455.53

Finding the Fourth Proportional to 12,487.06, 18,747.06 and 11,455.53

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Solution

The fourth proportional to 12,487.06, 18,747.06 and 11,455.53 is: 17,198.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,487.06 : 18,747.06 = 11,455.53 : x
  2. Step 2: Convert to fraction form
    12,487.06/18,747.06 = 11,455.53/x
  3. Step 3: Cross multiply
    12,487.06x = 18,747.06 × 11,455.53
  4. Step 4: Simplify right side
    12,487.06x = 214,757,508.24
  5. Step 5: Solve for x
    x = 214,757,508.24/12,487.06
  6. Step 6: Final answer
    x = 17,198.40

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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.