Home / 12,807.08-19,211.66-3,924.36

Finding the Fourth Proportional to 12,807.08, 19,211.66 and 3,924.36

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Solution

The fourth proportional to 12,807.08, 19,211.66 and 3,924.36 is: 5,886.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,807.08 : 19,211.66 = 3,924.36 : x
  2. Step 2: Convert to fraction form
    12,807.08/19,211.66 = 3,924.36/x
  3. Step 3: Cross multiply
    12,807.08x = 19,211.66 × 3,924.36
  4. Step 4: Simplify right side
    12,807.08x = 75,393,470.04
  5. Step 5: Solve for x
    x = 75,393,470.04/12,807.08
  6. Step 6: Final answer
    x = 5,886.86

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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.