Home / 9,189.42-12,681.39-4,997.64

Finding the Fourth Proportional to 9,189.42, 12,681.39 and 4,997.64

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Solution

The fourth proportional to 9,189.42, 12,681.39 and 4,997.64 is: 6,896.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,189.42 : 12,681.39 = 4,997.64 : x
  2. Step 2: Convert to fraction form
    9,189.42/12,681.39 = 4,997.64/x
  3. Step 3: Cross multiply
    9,189.42x = 12,681.39 × 4,997.64
  4. Step 4: Simplify right side
    9,189.42x = 63,377,021.92
  5. Step 5: Solve for x
    x = 63,377,021.92/9,189.42
  6. Step 6: Final answer
    x = 6,896.74

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.