Home / 8,390.74-11,579.35-4,614.07

Finding the Fourth Proportional to 8,390.74, 11,579.35 and 4,614.07

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Solution

The fourth proportional to 8,390.74, 11,579.35 and 4,614.07 is: 6,367.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,390.74 : 11,579.35 = 4,614.07 : x
  2. Step 2: Convert to fraction form
    8,390.74/11,579.35 = 4,614.07/x
  3. Step 3: Cross multiply
    8,390.74x = 11,579.35 × 4,614.07
  4. Step 4: Simplify right side
    8,390.74x = 53,427,873.56
  5. Step 5: Solve for x
    x = 53,427,873.56/8,390.74
  6. Step 6: Final answer
    x = 6,367.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.