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Finding the Fourth Proportional to 8,808.80, 12,156.04 and 4,829.90

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Solution

The fourth proportional to 8,808.80, 12,156.04 and 4,829.90 is: 6,665.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808.80 : 12,156.04 = 4,829.90 : x
  2. Step 2: Convert to fraction form
    8,808.80/12,156.04 = 4,829.90/x
  3. Step 3: Cross multiply
    8,808.80x = 12,156.04 × 4,829.90
  4. Step 4: Simplify right side
    8,808.80x = 58,712,457.60
  5. Step 5: Solve for x
    x = 58,712,457.60/8,808.80
  6. Step 6: Final answer
    x = 6,665.20

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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.