Home / 10,753.05-16,129.58-8,128.65

Finding the Fourth Proportional to 10,753.05, 16,129.58 and 8,128.65

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Solution

The fourth proportional to 10,753.05, 16,129.58 and 8,128.65 is: 12,192.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,753.05 : 16,129.58 = 8,128.65 : x
  2. Step 2: Convert to fraction form
    10,753.05/16,129.58 = 8,128.65/x
  3. Step 3: Cross multiply
    10,753.05x = 16,129.58 × 8,128.65
  4. Step 4: Simplify right side
    10,753.05x = 131,111,669.82
  5. Step 5: Solve for x
    x = 131,111,669.82/10,753.05
  6. Step 6: Final answer
    x = 12,192.98

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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.