Home / 7,845.78-10,827.24-4,309.14

Finding the Fourth Proportional to 7,845.78, 10,827.24 and 4,309.14

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Solution

The fourth proportional to 7,845.78, 10,827.24 and 4,309.14 is: 5,946.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,845.78 : 10,827.24 = 4,309.14 : x
  2. Step 2: Convert to fraction form
    7,845.78/10,827.24 = 4,309.14/x
  3. Step 3: Cross multiply
    7,845.78x = 10,827.24 × 4,309.14
  4. Step 4: Simplify right side
    7,845.78x = 46,656,092.97
  5. Step 5: Solve for x
    x = 46,656,092.97/7,845.78
  6. Step 6: Final answer
    x = 5,946.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.