Home / 7,827.10-11,736.81-3,873.79

Finding the Fourth Proportional to 7,827.10, 11,736.81 and 3,873.79

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Solution

The fourth proportional to 7,827.10, 11,736.81 and 3,873.79 is: 5,808.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,827.10 : 11,736.81 = 3,873.79 : x
  2. Step 2: Convert to fraction form
    7,827.10/11,736.81 = 3,873.79/x
  3. Step 3: Cross multiply
    7,827.10x = 11,736.81 × 3,873.79
  4. Step 4: Simplify right side
    7,827.10x = 45,465,937.21
  5. Step 5: Solve for x
    x = 45,465,937.21/7,827.10
  6. Step 6: Final answer
    x = 5,808.78

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1.5x scale

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.