Home / 10,081.04-15,121.77-3,669.40

Finding the Fourth Proportional to 10,081.04, 15,121.77 and 3,669.40

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Solution

The fourth proportional to 10,081.04, 15,121.77 and 3,669.40 is: 5,504.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,081.04 : 15,121.77 = 3,669.40 : x
  2. Step 2: Convert to fraction form
    10,081.04/15,121.77 = 3,669.40/x
  3. Step 3: Cross multiply
    10,081.04x = 15,121.77 × 3,669.40
  4. Step 4: Simplify right side
    10,081.04x = 55,487,827.98
  5. Step 5: Solve for x
    x = 55,487,827.98/10,081.04
  6. Step 6: Final answer
    x = 5,504.18

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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.