Home / 11,314.19-15,613.05-6,278.36

Finding the Fourth Proportional to 11,314.19, 15,613.05 and 6,278.36

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Solution

The fourth proportional to 11,314.19, 15,613.05 and 6,278.36 is: 8,663.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,314.19 : 15,613.05 = 6,278.36 : x
  2. Step 2: Convert to fraction form
    11,314.19/15,613.05 = 6,278.36/x
  3. Step 3: Cross multiply
    11,314.19x = 15,613.05 × 6,278.36
  4. Step 4: Simplify right side
    11,314.19x = 98,024,348.60
  5. Step 5: Solve for x
    x = 98,024,348.60/11,314.19
  6. Step 6: Final answer
    x = 8,663.84

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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.