Home / 6,774.30-10,161.45-5,111.10

Finding the Fourth Proportional to 6,774.30, 10,161.45 and 5,111.10

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Solution

The fourth proportional to 6,774.30, 10,161.45 and 5,111.10 is: 7,666.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,774.30 : 10,161.45 = 5,111.10 : x
  2. Step 2: Convert to fraction form
    6,774.30/10,161.45 = 5,111.10/x
  3. Step 3: Cross multiply
    6,774.30x = 10,161.45 × 5,111.10
  4. Step 4: Simplify right side
    6,774.30x = 51,936,187.10
  5. Step 5: Solve for x
    x = 51,936,187.10/6,774.30
  6. Step 6: Final answer
    x = 7,666.65

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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.