Home / 7,452.09-10,280.34-5,357.43

Finding the Fourth Proportional to 7,452.09, 10,280.34 and 5,357.43

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Solution

The fourth proportional to 7,452.09, 10,280.34 and 5,357.43 is: 7,390.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,452.09 : 10,280.34 = 5,357.43 : x
  2. Step 2: Convert to fraction form
    7,452.09/10,280.34 = 5,357.43/x
  3. Step 3: Cross multiply
    7,452.09x = 10,280.34 × 5,357.43
  4. Step 4: Simplify right side
    7,452.09x = 55,076,201.93
  5. Step 5: Solve for x
    x = 55,076,201.93/7,452.09
  6. Step 6: Final answer
    x = 7,390.71

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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.