Home / 7,162.75-9,885.24-4,331.53

Finding the Fourth Proportional to 7,162.75, 9,885.24 and 4,331.53

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Solution

The fourth proportional to 7,162.75, 9,885.24 and 4,331.53 is: 5,977.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,162.75 : 9,885.24 = 4,331.53 : x
  2. Step 2: Convert to fraction form
    7,162.75/9,885.24 = 4,331.53/x
  3. Step 3: Cross multiply
    7,162.75x = 9,885.24 × 4,331.53
  4. Step 4: Simplify right side
    7,162.75x = 42,818,213.62
  5. Step 5: Solve for x
    x = 42,818,213.62/7,162.75
  6. Step 6: Final answer
    x = 5,977.90

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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.