Home / 12,961.47-19,445.28-4,196.37

Finding the Fourth Proportional to 12,961.47, 19,445.28 and 4,196.37

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Solution

The fourth proportional to 12,961.47, 19,445.28 and 4,196.37 is: 6,295.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,961.47 : 19,445.28 = 4,196.37 : x
  2. Step 2: Convert to fraction form
    12,961.47/19,445.28 = 4,196.37/x
  3. Step 3: Cross multiply
    12,961.47x = 19,445.28 × 4,196.37
  4. Step 4: Simplify right side
    12,961.47x = 81,599,589.63
  5. Step 5: Solve for x
    x = 81,599,589.63/12,961.47
  6. Step 6: Final answer
    x = 6,295.55

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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.