Home / 12,340.32-18,512.64-4,019.46

Finding the Fourth Proportional to 12,340.32, 18,512.64 and 4,019.46

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Solution

The fourth proportional to 12,340.32, 18,512.64 and 4,019.46 is: 6,029.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,340.32 : 18,512.64 = 4,019.46 : x
  2. Step 2: Convert to fraction form
    12,340.32/18,512.64 = 4,019.46/x
  3. Step 3: Cross multiply
    12,340.32x = 18,512.64 × 4,019.46
  4. Step 4: Simplify right side
    12,340.32x = 74,410,815.97
  5. Step 5: Solve for x
    x = 74,410,815.97/12,340.32
  6. Step 6: Final answer
    x = 6,029.89

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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.