Home / 9,541.78-13,167.66-5,815.78

Finding the Fourth Proportional to 9,541.78, 13,167.66 and 5,815.78

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Solution

The fourth proportional to 9,541.78, 13,167.66 and 5,815.78 is: 8,025.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,541.78 : 13,167.66 = 5,815.78 : x
  2. Step 2: Convert to fraction form
    9,541.78/13,167.66 = 5,815.78/x
  3. Step 3: Cross multiply
    9,541.78x = 13,167.66 × 5,815.78
  4. Step 4: Simplify right side
    9,541.78x = 76,580,251.94
  5. Step 5: Solve for x
    x = 76,580,251.94/9,541.78
  6. Step 6: Final answer
    x = 8,025.78

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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.