Home / 7,427.84-11,142.15-1,881.23

Finding the Fourth Proportional to 7,427.84, 11,142.15 and 1,881.23

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Solution

The fourth proportional to 7,427.84, 11,142.15 and 1,881.23 is: 2,821.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,427.84 : 11,142.15 = 1,881.23 : x
  2. Step 2: Convert to fraction form
    7,427.84/11,142.15 = 1,881.23/x
  3. Step 3: Cross multiply
    7,427.84x = 11,142.15 × 1,881.23
  4. Step 4: Simplify right side
    7,427.84x = 20,960,884.08
  5. Step 5: Solve for x
    x = 20,960,884.08/7,427.84
  6. Step 6: Final answer
    x = 2,821.94

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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.