Home / 9,189.14-12,680.93-4,997.39

Finding the Fourth Proportional to 9,189.14, 12,680.93 and 4,997.39

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Solution

The fourth proportional to 9,189.14, 12,680.93 and 4,997.39 is: 6,896.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,189.14 : 12,680.93 = 4,997.39 : x
  2. Step 2: Convert to fraction form
    9,189.14/12,680.93 = 4,997.39/x
  3. Step 3: Cross multiply
    9,189.14x = 12,680.93 × 4,997.39
  4. Step 4: Simplify right side
    9,189.14x = 63,371,464.38
  5. Step 5: Solve for x
    x = 63,371,464.38/9,189.14
  6. Step 6: Final answer
    x = 6,896.35

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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.