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Finding the Fourth Proportional to 8,696.08, 13,027.80 and 4,308.40

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Solution

The fourth proportional to 8,696.08, 13,027.80 and 4,308.40 is: 6,454.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,696.08 : 13,027.80 = 4,308.40 : x
  2. Step 2: Convert to fraction form
    8,696.08/13,027.80 = 4,308.40/x
  3. Step 3: Cross multiply
    8,696.08x = 13,027.80 × 4,308.40
  4. Step 4: Simplify right side
    8,696.08x = 56,128,973.52
  5. Step 5: Solve for x
    x = 56,128,973.52/8,696.08
  6. Step 6: Final answer
    x = 6,454.51

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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.