Home / 7,213.53-10,809.35-5,355.95

Finding the Fourth Proportional to 7,213.53, 10,809.35 and 5,355.95

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Solution

The fourth proportional to 7,213.53, 10,809.35 and 5,355.95 is: 8,025.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.53 : 10,809.35 = 5,355.95 : x
  2. Step 2: Convert to fraction form
    7,213.53/10,809.35 = 5,355.95/x
  3. Step 3: Cross multiply
    7,213.53x = 10,809.35 × 5,355.95
  4. Step 4: Simplify right side
    7,213.53x = 57,894,338.13
  5. Step 5: Solve for x
    x = 57,894,338.13/7,213.53
  6. Step 6: Final answer
    x = 8,025.80

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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.