Home / 11,279.10-15,564.84-6,243.18

Finding the Fourth Proportional to 11,279.10, 15,564.84 and 6,243.18

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Solution

The fourth proportional to 11,279.10, 15,564.84 and 6,243.18 is: 8,615.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.10 : 15,564.84 = 6,243.18 : x
  2. Step 2: Convert to fraction form
    11,279.10/15,564.84 = 6,243.18/x
  3. Step 3: Cross multiply
    11,279.10x = 15,564.84 × 6,243.18
  4. Step 4: Simplify right side
    11,279.10x = 97,174,097.79
  5. Step 5: Solve for x
    x = 97,174,097.79/11,279.10
  6. Step 6: Final answer
    x = 8,615.41

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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.