Home / 8,774.23-12,107.38-4,997.40

Finding the Fourth Proportional to 8,774.23, 12,107.38 and 4,997.40

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Solution

The fourth proportional to 8,774.23, 12,107.38 and 4,997.40 is: 6,895.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,774.23 : 12,107.38 = 4,997.40 : x
  2. Step 2: Convert to fraction form
    8,774.23/12,107.38 = 4,997.40/x
  3. Step 3: Cross multiply
    8,774.23x = 12,107.38 × 4,997.40
  4. Step 4: Simplify right side
    8,774.23x = 60,505,420.81
  5. Step 5: Solve for x
    x = 60,505,420.81/8,774.23
  6. Step 6: Final answer
    x = 6,895.81

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.