Home / 9,881.83-14,821.19-3,218.57

Finding the Fourth Proportional to 9,881.83, 14,821.19 and 3,218.57

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Solution

The fourth proportional to 9,881.83, 14,821.19 and 3,218.57 is: 4,827.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,881.83 : 14,821.19 = 3,218.57 : x
  2. Step 2: Convert to fraction form
    9,881.83/14,821.19 = 3,218.57/x
  3. Step 3: Cross multiply
    9,881.83x = 14,821.19 × 3,218.57
  4. Step 4: Simplify right side
    9,881.83x = 47,703,033.05
  5. Step 5: Solve for x
    x = 47,703,033.05/9,881.83
  6. Step 6: Final answer
    x = 4,827.35

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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.