Home / 8,318.08-11,487.04-5,175.68

Finding the Fourth Proportional to 8,318.08, 11,487.04 and 5,175.68

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Solution

The fourth proportional to 8,318.08, 11,487.04 and 5,175.68 is: 7,147.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.08 : 11,487.04 = 5,175.68 : x
  2. Step 2: Convert to fraction form
    8,318.08/11,487.04 = 5,175.68/x
  3. Step 3: Cross multiply
    8,318.08x = 11,487.04 × 5,175.68
  4. Step 4: Simplify right side
    8,318.08x = 59,453,243.19
  5. Step 5: Solve for x
    x = 59,453,243.19/8,318.08
  6. Step 6: Final answer
    x = 7,147.47

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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.