Home / 7,421.47-11,132.55-4,132.09

Finding the Fourth Proportional to 7,421.47, 11,132.55 and 4,132.09

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Solution

The fourth proportional to 7,421.47, 11,132.55 and 4,132.09 is: 6,198.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.47 : 11,132.55 = 4,132.09 : x
  2. Step 2: Convert to fraction form
    7,421.47/11,132.55 = 4,132.09/x
  3. Step 3: Cross multiply
    7,421.47x = 11,132.55 × 4,132.09
  4. Step 4: Simplify right side
    7,421.47x = 46,000,622.21
  5. Step 5: Solve for x
    x = 46,000,622.21/7,421.47
  6. Step 6: Final answer
    x = 6,198.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.