Home / 9,516.35-13,123.88-8,171.53

Finding the Fourth Proportional to 9,516.35, 13,123.88 and 8,171.53

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Solution

The fourth proportional to 9,516.35, 13,123.88 and 8,171.53 is: 11,269.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,516.35 : 13,123.88 = 8,171.53 : x
  2. Step 2: Convert to fraction form
    9,516.35/13,123.88 = 8,171.53/x
  3. Step 3: Cross multiply
    9,516.35x = 13,123.88 × 8,171.53
  4. Step 4: Simplify right side
    9,516.35x = 107,242,185.33
  5. Step 5: Solve for x
    x = 107,242,185.33/9,516.35
  6. Step 6: Final answer
    x = 11,269.26

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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.