Home / 7,140.84-10,713.60-4,505.30

Finding the Fourth Proportional to 7,140.84, 10,713.60 and 4,505.30

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Solution

The fourth proportional to 7,140.84, 10,713.60 and 4,505.30 is: 6,759.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.84 : 10,713.60 = 4,505.30 : x
  2. Step 2: Convert to fraction form
    7,140.84/10,713.60 = 4,505.30/x
  3. Step 3: Cross multiply
    7,140.84x = 10,713.60 × 4,505.30
  4. Step 4: Simplify right side
    7,140.84x = 48,267,982.08
  5. Step 5: Solve for x
    x = 48,267,982.08/7,140.84
  6. Step 6: Final answer
    x = 6,759.43

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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.