Home / 7,427.55-11,141.04-1,881.09

Finding the Fourth Proportional to 7,427.55, 11,141.04 and 1,881.09

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Solution

The fourth proportional to 7,427.55, 11,141.04 and 1,881.09 is: 2,821.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,427.55 : 11,141.04 = 1,881.09 : x
  2. Step 2: Convert to fraction form
    7,427.55/11,141.04 = 1,881.09/x
  3. Step 3: Cross multiply
    7,427.55x = 11,141.04 × 1,881.09
  4. Step 4: Simplify right side
    7,427.55x = 20,957,298.93
  5. Step 5: Solve for x
    x = 20,957,298.93/7,427.55
  6. Step 6: Final answer
    x = 2,821.56

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Half scale
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Double scale
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Similar ratio
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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.