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Finding the Fourth Proportional to 8,894.72, 13,328.96 and 4,272.32

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Solution

The fourth proportional to 8,894.72, 13,328.96 and 4,272.32 is: 6,402.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,894.72 : 13,328.96 = 4,272.32 : x
  2. Step 2: Convert to fraction form
    8,894.72/13,328.96 = 4,272.32/x
  3. Step 3: Cross multiply
    8,894.72x = 13,328.96 × 4,272.32
  4. Step 4: Simplify right side
    8,894.72x = 56,945,582.39
  5. Step 5: Solve for x
    x = 56,945,582.39/8,894.72
  6. Step 6: Final answer
    x = 6,402.18

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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.