Home / 12,838.24-19,255.68-4,073.20

Finding the Fourth Proportional to 12,838.24, 19,255.68 and 4,073.20

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Solution

The fourth proportional to 12,838.24, 19,255.68 and 4,073.20 is: 6,109.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,838.24 : 19,255.68 = 4,073.20 : x
  2. Step 2: Convert to fraction form
    12,838.24/19,255.68 = 4,073.20/x
  3. Step 3: Cross multiply
    12,838.24x = 19,255.68 × 4,073.20
  4. Step 4: Simplify right side
    12,838.24x = 78,432,235.78
  5. Step 5: Solve for x
    x = 78,432,235.78/12,838.24
  6. Step 6: Final answer
    x = 6,109.27

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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.