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Finding the Fourth Proportional to 7,866.93, 11,807.81 and 2,874.14

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Solution

The fourth proportional to 7,866.93, 11,807.81 and 2,874.14 is: 4,313.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,866.93 : 11,807.81 = 2,874.14 : x
  2. Step 2: Convert to fraction form
    7,866.93/11,807.81 = 2,874.14/x
  3. Step 3: Cross multiply
    7,866.93x = 11,807.81 × 2,874.14
  4. Step 4: Simplify right side
    7,866.93x = 33,937,280.68
  5. Step 5: Solve for x
    x = 33,937,280.68/7,866.93
  6. Step 6: Final answer
    x = 4,313.92

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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.