Home / 8,209.89-11,328.41-4,624.34

Finding the Fourth Proportional to 8,209.89, 11,328.41 and 4,624.34

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Solution

The fourth proportional to 8,209.89, 11,328.41 and 4,624.34 is: 6,380.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,209.89 : 11,328.41 = 4,624.34 : x
  2. Step 2: Convert to fraction form
    8,209.89/11,328.41 = 4,624.34/x
  3. Step 3: Cross multiply
    8,209.89x = 11,328.41 × 4,624.34
  4. Step 4: Simplify right side
    8,209.89x = 52,386,339.74
  5. Step 5: Solve for x
    x = 52,386,339.74/8,209.89
  6. Step 6: Final answer
    x = 6,380.88

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1.5x scale

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.