Home / 7,278.87-10,034.26-5,147.76

Finding the Fourth Proportional to 7,278.87, 10,034.26 and 5,147.76

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Solution

The fourth proportional to 7,278.87, 10,034.26 and 5,147.76 is: 7,096.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278.87 : 10,034.26 = 5,147.76 : x
  2. Step 2: Convert to fraction form
    7,278.87/10,034.26 = 5,147.76/x
  3. Step 3: Cross multiply
    7,278.87x = 10,034.26 × 5,147.76
  4. Step 4: Simplify right side
    7,278.87x = 51,653,987.02
  5. Step 5: Solve for x
    x = 51,653,987.02/7,278.87
  6. Step 6: Final answer
    x = 7,096.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.