Home / 7,827.15-11,741.13-1,983.81

Finding the Fourth Proportional to 7,827.15, 11,741.13 and 1,983.81

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Solution

The fourth proportional to 7,827.15, 11,741.13 and 1,983.81 is: 2,975.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,827.15 : 11,741.13 = 1,983.81 : x
  2. Step 2: Convert to fraction form
    7,827.15/11,741.13 = 1,983.81/x
  3. Step 3: Cross multiply
    7,827.15x = 11,741.13 × 1,983.81
  4. Step 4: Simplify right side
    7,827.15x = 23,292,171.11
  5. Step 5: Solve for x
    x = 23,292,171.11/7,827.15
  6. Step 6: Final answer
    x = 2,975.82

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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.