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Finding the Fourth Proportional to 11,329.59, 15,631.59 and 6,850.09

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Solution

The fourth proportional to 11,329.59, 15,631.59 and 6,850.09 is: 9,451.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,329.59 : 15,631.59 = 6,850.09 : x
  2. Step 2: Convert to fraction form
    11,329.59/15,631.59 = 6,850.09/x
  3. Step 3: Cross multiply
    11,329.59x = 15,631.59 × 6,850.09
  4. Step 4: Simplify right side
    11,329.59x = 107,077,798.34
  5. Step 5: Solve for x
    x = 107,077,798.34/11,329.59
  6. Step 6: Final answer
    x = 9,451.16

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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.