Home / 6,873.38-10,287.53-5,220.85

Finding the Fourth Proportional to 6,873.38, 10,287.53 and 5,220.85

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Solution

The fourth proportional to 6,873.38, 10,287.53 and 5,220.85 is: 7,814.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,873.38 : 10,287.53 = 5,220.85 : x
  2. Step 2: Convert to fraction form
    6,873.38/10,287.53 = 5,220.85/x
  3. Step 3: Cross multiply
    6,873.38x = 10,287.53 × 5,220.85
  4. Step 4: Simplify right side
    6,873.38x = 53,709,573.46
  5. Step 5: Solve for x
    x = 53,709,573.46/6,873.38
  6. Step 6: Final answer
    x = 7,814.14

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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.