Home / 7,355.12-10,147.82-4,167.90

Finding the Fourth Proportional to 7,355.12, 10,147.82 and 4,167.90

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Solution

The fourth proportional to 7,355.12, 10,147.82 and 4,167.90 is: 5,750.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,355.12 : 10,147.82 = 4,167.90 : x
  2. Step 2: Convert to fraction form
    7,355.12/10,147.82 = 4,167.90/x
  3. Step 3: Cross multiply
    7,355.12x = 10,147.82 × 4,167.90
  4. Step 4: Simplify right side
    7,355.12x = 42,295,078.14
  5. Step 5: Solve for x
    x = 42,295,078.14/7,355.12
  6. Step 6: Final answer
    x = 5,750.43

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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.