Home / 12,877.24-17,702.21-11,078.12

Finding the Fourth Proportional to 12,877.24, 17,702.21 and 11,078.12

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Solution

The fourth proportional to 12,877.24, 17,702.21 and 11,078.12 is: 15,228.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,877.24 : 17,702.21 = 11,078.12 : x
  2. Step 2: Convert to fraction form
    12,877.24/17,702.21 = 11,078.12/x
  3. Step 3: Cross multiply
    12,877.24x = 17,702.21 × 11,078.12
  4. Step 4: Simplify right side
    12,877.24x = 196,107,206.65
  5. Step 5: Solve for x
    x = 196,107,206.65/12,877.24
  6. Step 6: Final answer
    x = 15,228.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.