Home / 11,813.10-16,307.91-8,055.78

Finding the Fourth Proportional to 11,813.10, 16,307.91 and 8,055.78

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Solution

The fourth proportional to 11,813.10, 16,307.91 and 8,055.78 is: 11,120.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,813.10 : 16,307.91 = 8,055.78 : x
  2. Step 2: Convert to fraction form
    11,813.10/16,307.91 = 8,055.78/x
  3. Step 3: Cross multiply
    11,813.10x = 16,307.91 × 8,055.78
  4. Step 4: Simplify right side
    11,813.10x = 131,372,935.22
  5. Step 5: Solve for x
    x = 131,372,935.22/11,813.10
  6. Step 6: Final answer
    x = 11,120.95

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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.