Home / 8,929.20-13,392.12-3,085.84

Finding the Fourth Proportional to 8,929.20, 13,392.12 and 3,085.84

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Solution

The fourth proportional to 8,929.20, 13,392.12 and 3,085.84 is: 4,628.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,929.20 : 13,392.12 = 3,085.84 : x
  2. Step 2: Convert to fraction form
    8,929.20/13,392.12 = 3,085.84/x
  3. Step 3: Cross multiply
    8,929.20x = 13,392.12 × 3,085.84
  4. Step 4: Simplify right side
    8,929.20x = 41,325,939.58
  5. Step 5: Solve for x
    x = 41,325,939.58/8,929.20
  6. Step 6: Final answer
    x = 4,628.18

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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.