Home / 12,910.60-19,371.30-4,148.20

Finding the Fourth Proportional to 12,910.60, 19,371.30 and 4,148.20

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Solution

The fourth proportional to 12,910.60, 19,371.30 and 4,148.20 is: 6,224.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,910.60 : 19,371.30 = 4,148.20 : x
  2. Step 2: Convert to fraction form
    12,910.60/19,371.30 = 4,148.20/x
  3. Step 3: Cross multiply
    12,910.60x = 19,371.30 × 4,148.20
  4. Step 4: Simplify right side
    12,910.60x = 80,356,026.66
  5. Step 5: Solve for x
    x = 80,356,026.66/12,910.60
  6. Step 6: Final answer
    x = 6,224.04

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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.