Home / 11,072.69-15,279.22-6,356.06

Finding the Fourth Proportional to 11,072.69, 15,279.22 and 6,356.06

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Solution

The fourth proportional to 11,072.69, 15,279.22 and 6,356.06 is: 8,770.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,072.69 : 15,279.22 = 6,356.06 : x
  2. Step 2: Convert to fraction form
    11,072.69/15,279.22 = 6,356.06/x
  3. Step 3: Cross multiply
    11,072.69x = 15,279.22 × 6,356.06
  4. Step 4: Simplify right side
    11,072.69x = 97,115,639.07
  5. Step 5: Solve for x
    x = 97,115,639.07/11,072.69
  6. Step 6: Final answer
    x = 8,770.74

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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.