Home / 12,951.24-19,427.10-4,186.20

Finding the Fourth Proportional to 12,951.24, 19,427.10 and 4,186.20

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Solution

The fourth proportional to 12,951.24, 19,427.10 and 4,186.20 is: 6,279.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,951.24 : 19,427.10 = 4,186.20 : x
  2. Step 2: Convert to fraction form
    12,951.24/19,427.10 = 4,186.20/x
  3. Step 3: Cross multiply
    12,951.24x = 19,427.10 × 4,186.20
  4. Step 4: Simplify right side
    12,951.24x = 81,325,726.02
  5. Step 5: Solve for x
    x = 81,325,726.02/12,951.24
  6. Step 6: Final answer
    x = 6,279.38

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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.