Home / 19,670.76-27,146.21-11,287.26

Finding the Fourth Proportional to 19,670.76, 27,146.21 and 11,287.26

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Solution

The fourth proportional to 19,670.76, 27,146.21 and 11,287.26 is: 15,576.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,670.76 : 27,146.21 = 11,287.26 : x
  2. Step 2: Convert to fraction form
    19,670.76/27,146.21 = 11,287.26/x
  3. Step 3: Cross multiply
    19,670.76x = 27,146.21 × 11,287.26
  4. Step 4: Simplify right side
    19,670.76x = 306,406,273.85
  5. Step 5: Solve for x
    x = 306,406,273.85/19,670.76
  6. Step 6: Final answer
    x = 15,576.74

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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.