Home / 11,918.18-17,864.85-4,518.02

Finding the Fourth Proportional to 11,918.18, 17,864.85 and 4,518.02

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Solution

The fourth proportional to 11,918.18, 17,864.85 and 4,518.02 is: 6,772.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.18 : 17,864.85 = 4,518.02 : x
  2. Step 2: Convert to fraction form
    11,918.18/17,864.85 = 4,518.02/x
  3. Step 3: Cross multiply
    11,918.18x = 17,864.85 × 4,518.02
  4. Step 4: Simplify right side
    11,918.18x = 80,713,749.60
  5. Step 5: Solve for x
    x = 80,713,749.60/11,918.18
  6. Step 6: Final answer
    x = 6,772.32

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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.