Home / 12,165.92-18,248.56-3,400.64

Finding the Fourth Proportional to 12,165.92, 18,248.56 and 3,400.64

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Solution

The fourth proportional to 12,165.92, 18,248.56 and 3,400.64 is: 5,100.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,165.92 : 18,248.56 = 3,400.64 : x
  2. Step 2: Convert to fraction form
    12,165.92/18,248.56 = 3,400.64/x
  3. Step 3: Cross multiply
    12,165.92x = 18,248.56 × 3,400.64
  4. Step 4: Simplify right side
    12,165.92x = 62,056,783.08
  5. Step 5: Solve for x
    x = 62,056,783.08/12,165.92
  6. Step 6: Final answer
    x = 5,100.87

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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.