Home / 18,930.24-28,392.32-6,449.92

Finding the Fourth Proportional to 18,930.24, 28,392.32 and 6,449.92

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Solution

The fourth proportional to 18,930.24, 28,392.32 and 6,449.92 is: 9,673.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,930.24 : 28,392.32 = 6,449.92 : x
  2. Step 2: Convert to fraction form
    18,930.24/28,392.32 = 6,449.92/x
  3. Step 3: Cross multiply
    18,930.24x = 28,392.32 × 6,449.92
  4. Step 4: Simplify right side
    18,930.24x = 183,128,192.61
  5. Step 5: Solve for x
    x = 183,128,192.61/18,930.24
  6. Step 6: Final answer
    x = 9,673.84

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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.