Home / 7,209.09-10,821.74-5,585.22

Finding the Fourth Proportional to 7,209.09, 10,821.74 and 5,585.22

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Solution

The fourth proportional to 7,209.09, 10,821.74 and 5,585.22 is: 8,384.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,209.09 : 10,821.74 = 5,585.22 : x
  2. Step 2: Convert to fraction form
    7,209.09/10,821.74 = 5,585.22/x
  3. Step 3: Cross multiply
    7,209.09x = 10,821.74 × 5,585.22
  4. Step 4: Simplify right side
    7,209.09x = 60,441,770.76
  5. Step 5: Solve for x
    x = 60,441,770.76/7,209.09
  6. Step 6: Final answer
    x = 8,384.11

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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.