Home / 12,760.09-19,140.14-3,995.69

Finding the Fourth Proportional to 12,760.09, 19,140.14 and 3,995.69

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Solution

The fourth proportional to 12,760.09, 19,140.14 and 3,995.69 is: 5,993.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,760.09 : 19,140.14 = 3,995.69 : x
  2. Step 2: Convert to fraction form
    12,760.09/19,140.14 = 3,995.69/x
  3. Step 3: Cross multiply
    12,760.09x = 19,140.14 × 3,995.69
  4. Step 4: Simplify right side
    12,760.09x = 76,478,066.00
  5. Step 5: Solve for x
    x = 76,478,066.00/12,760.09
  6. Step 6: Final answer
    x = 5,993.54

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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.