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Finding the Fourth Proportional to 8,878.80, 12,252.81 and 4,900.19

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Solution

The fourth proportional to 8,878.80, 12,252.81 and 4,900.19 is: 6,762.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878.80 : 12,252.81 = 4,900.19 : x
  2. Step 2: Convert to fraction form
    8,878.80/12,252.81 = 4,900.19/x
  3. Step 3: Cross multiply
    8,878.80x = 12,252.81 × 4,900.19
  4. Step 4: Simplify right side
    8,878.80x = 60,041,035.77
  5. Step 5: Solve for x
    x = 60,041,035.77/8,878.80
  6. Step 6: Final answer
    x = 6,762.29

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1.5x scale

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.