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Finding the Fourth Proportional to 9,323.68, 12,863.78 and 5,289.84

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Solution

The fourth proportional to 9,323.68, 12,863.78 and 5,289.84 is: 7,298.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,323.68 : 12,863.78 = 5,289.84 : x
  2. Step 2: Convert to fraction form
    9,323.68/12,863.78 = 5,289.84/x
  3. Step 3: Cross multiply
    9,323.68x = 12,863.78 × 5,289.84
  4. Step 4: Simplify right side
    9,323.68x = 68,047,338.00
  5. Step 5: Solve for x
    x = 68,047,338.00/9,323.68
  6. Step 6: Final answer
    x = 7,298.33

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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.