Home / 11,725.99-16,165.19-7,247.21

Finding the Fourth Proportional to 11,725.99, 16,165.19 and 7,247.21

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Solution

The fourth proportional to 11,725.99, 16,165.19 and 7,247.21 is: 9,990.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,725.99 : 16,165.19 = 7,247.21 : x
  2. Step 2: Convert to fraction form
    11,725.99/16,165.19 = 7,247.21/x
  3. Step 3: Cross multiply
    11,725.99x = 16,165.19 × 7,247.21
  4. Step 4: Simplify right side
    11,725.99x = 117,152,463.91
  5. Step 5: Solve for x
    x = 117,152,463.91/11,725.99
  6. Step 6: Final answer
    x = 9,990.84

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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.