Home / 12,838.20-19,260.06-4,073.82

Finding the Fourth Proportional to 12,838.20, 19,260.06 and 4,073.82

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Solution

The fourth proportional to 12,838.20, 19,260.06 and 4,073.82 is: 6,111.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,838.20 : 19,260.06 = 4,073.82 : x
  2. Step 2: Convert to fraction form
    12,838.20/19,260.06 = 4,073.82/x
  3. Step 3: Cross multiply
    12,838.20x = 19,260.06 × 4,073.82
  4. Step 4: Simplify right side
    12,838.20x = 78,462,017.63
  5. Step 5: Solve for x
    x = 78,462,017.63/12,838.20
  6. Step 6: Final answer
    x = 6,111.61

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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.