Home / 7,431.62-11,147.45-1,884.97

Finding the Fourth Proportional to 7,431.62, 11,147.45 and 1,884.97

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Solution

The fourth proportional to 7,431.62, 11,147.45 and 1,884.97 is: 2,827.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.62 : 11,147.45 = 1,884.97 : x
  2. Step 2: Convert to fraction form
    7,431.62/11,147.45 = 1,884.97/x
  3. Step 3: Cross multiply
    7,431.62x = 11,147.45 × 1,884.97
  4. Step 4: Simplify right side
    7,431.62x = 21,012,543.66
  5. Step 5: Solve for x
    x = 21,012,543.66/7,431.62
  6. Step 6: Final answer
    x = 2,827.45

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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.