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Finding the Fourth Proportional to 8,985.92, 13,479.98 and 3,063.80

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Solution

The fourth proportional to 8,985.92, 13,479.98 and 3,063.80 is: 4,596.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,985.92 : 13,479.98 = 3,063.80 : x
  2. Step 2: Convert to fraction form
    8,985.92/13,479.98 = 3,063.80/x
  3. Step 3: Cross multiply
    8,985.92x = 13,479.98 × 3,063.80
  4. Step 4: Simplify right side
    8,985.92x = 41,299,962.72
  5. Step 5: Solve for x
    x = 41,299,962.72/8,985.92
  6. Step 6: Final answer
    x = 4,596.08

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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.