Home / 12,252.10-16,906.80-8,278.54

Finding the Fourth Proportional to 12,252.10, 16,906.80 and 8,278.54

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Solution

The fourth proportional to 12,252.10, 16,906.80 and 8,278.54 is: 11,423.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,252.10 : 16,906.80 = 8,278.54 : x
  2. Step 2: Convert to fraction form
    12,252.10/16,906.80 = 8,278.54/x
  3. Step 3: Cross multiply
    12,252.10x = 16,906.80 × 8,278.54
  4. Step 4: Simplify right side
    12,252.10x = 139,963,620.07
  5. Step 5: Solve for x
    x = 139,963,620.07/12,252.10
  6. Step 6: Final answer
    x = 11,423.64

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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.