Home / 7,372.30-10,171.55-6,661.86

Finding the Fourth Proportional to 7,372.30, 10,171.55 and 6,661.86

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Solution

The fourth proportional to 7,372.30, 10,171.55 and 6,661.86 is: 9,191.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,372.30 : 10,171.55 = 6,661.86 : x
  2. Step 2: Convert to fraction form
    7,372.30/10,171.55 = 6,661.86/x
  3. Step 3: Cross multiply
    7,372.30x = 10,171.55 × 6,661.86
  4. Step 4: Simplify right side
    7,372.30x = 67,761,442.08
  5. Step 5: Solve for x
    x = 67,761,442.08/7,372.30
  6. Step 6: Final answer
    x = 9,191.36

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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.