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Finding the Fourth Proportional to 8,904.72, 12,286.44 and 5,368.08

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Solution

The fourth proportional to 8,904.72, 12,286.44 and 5,368.08 is: 7,406.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,904.72 : 12,286.44 = 5,368.08 : x
  2. Step 2: Convert to fraction form
    8,904.72/12,286.44 = 5,368.08/x
  3. Step 3: Cross multiply
    8,904.72x = 12,286.44 × 5,368.08
  4. Step 4: Simplify right side
    8,904.72x = 65,954,592.84
  5. Step 5: Solve for x
    x = 65,954,592.84/8,904.72
  6. Step 6: Final answer
    x = 7,406.70

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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.