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Finding the Fourth Proportional to 8,808.79, 12,155.91 and 4,829.80

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Solution

The fourth proportional to 8,808.79, 12,155.91 and 4,829.80 is: 6,665.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808.79 : 12,155.91 = 4,829.80 : x
  2. Step 2: Convert to fraction form
    8,808.79/12,155.91 = 4,829.80/x
  3. Step 3: Cross multiply
    8,808.79x = 12,155.91 × 4,829.80
  4. Step 4: Simplify right side
    8,808.79x = 58,710,614.12
  5. Step 5: Solve for x
    x = 58,710,614.12/8,808.79
  6. Step 6: Final answer
    x = 6,665.00

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.