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Finding the Fourth Proportional to 8,904.36, 13,352.04 and 5,207.79

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Solution

The fourth proportional to 8,904.36, 13,352.04 and 5,207.79 is: 7,809.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,904.36 : 13,352.04 = 5,207.79 : x
  2. Step 2: Convert to fraction form
    8,904.36/13,352.04 = 5,207.79/x
  3. Step 3: Cross multiply
    8,904.36x = 13,352.04 × 5,207.79
  4. Step 4: Simplify right side
    8,904.36x = 69,534,620.39
  5. Step 5: Solve for x
    x = 69,534,620.39/8,904.36
  6. Step 6: Final answer
    x = 7,809.05

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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.