Home / 6,945.53-10,421.70-3,247.21

Finding the Fourth Proportional to 6,945.53, 10,421.70 and 3,247.21

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Solution

The fourth proportional to 6,945.53, 10,421.70 and 3,247.21 is: 4,872.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,945.53 : 10,421.70 = 3,247.21 : x
  2. Step 2: Convert to fraction form
    6,945.53/10,421.70 = 3,247.21/x
  3. Step 3: Cross multiply
    6,945.53x = 10,421.70 × 3,247.21
  4. Step 4: Simplify right side
    6,945.53x = 33,841,449.31
  5. Step 5: Solve for x
    x = 33,841,449.31/6,945.53
  6. Step 6: Final answer
    x = 4,872.41

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1.5x scale

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.