Home / 12,928.24-19,386.20-5,906.17

Finding the Fourth Proportional to 12,928.24, 19,386.20 and 5,906.17

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Solution

The fourth proportional to 12,928.24, 19,386.20 and 5,906.17 is: 8,856.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928.24 : 19,386.20 = 5,906.17 : x
  2. Step 2: Convert to fraction form
    12,928.24/19,386.20 = 5,906.17/x
  3. Step 3: Cross multiply
    12,928.24x = 19,386.20 × 5,906.17
  4. Step 4: Simplify right side
    12,928.24x = 114,498,192.85
  5. Step 5: Solve for x
    x = 114,498,192.85/12,928.24
  6. Step 6: Final answer
    x = 8,856.44

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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.