Home / 12,110.55-18,165.82-3,345.47

Finding the Fourth Proportional to 12,110.55, 18,165.82 and 3,345.47

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Solution

The fourth proportional to 12,110.55, 18,165.82 and 3,345.47 is: 5,018.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,110.55 : 18,165.82 = 3,345.47 : x
  2. Step 2: Convert to fraction form
    12,110.55/18,165.82 = 3,345.47/x
  3. Step 3: Cross multiply
    12,110.55x = 18,165.82 × 3,345.47
  4. Step 4: Simplify right side
    12,110.55x = 60,773,119.19
  5. Step 5: Solve for x
    x = 60,773,119.19/12,110.55
  6. Step 6: Final answer
    x = 5,018.20

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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.