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Finding the Fourth Proportional to 8,877.79, 13,313.22 and 3,328.10

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Solution

The fourth proportional to 8,877.79, 13,313.22 and 3,328.10 is: 4,990.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,877.79 : 13,313.22 = 3,328.10 : x
  2. Step 2: Convert to fraction form
    8,877.79/13,313.22 = 3,328.10/x
  3. Step 3: Cross multiply
    8,877.79x = 13,313.22 × 3,328.10
  4. Step 4: Simplify right side
    8,877.79x = 44,307,740.48
  5. Step 5: Solve for x
    x = 44,307,740.48/8,877.79
  6. Step 6: Final answer
    x = 4,990.85

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1.5x scale

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.