Home / 12,879.20-19,303.20-5,468.10

Finding the Fourth Proportional to 12,879.20, 19,303.20 and 5,468.10

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Solution

The fourth proportional to 12,879.20, 19,303.20 and 5,468.10 is: 8,195.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,879.20 : 19,303.20 = 5,468.10 : x
  2. Step 2: Convert to fraction form
    12,879.20/19,303.20 = 5,468.10/x
  3. Step 3: Cross multiply
    12,879.20x = 19,303.20 × 5,468.10
  4. Step 4: Simplify right side
    12,879.20x = 105,551,827.92
  5. Step 5: Solve for x
    x = 105,551,827.92/12,879.20
  6. Step 6: Final answer
    x = 8,195.53

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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.