Home / 10,951.56-15,111.93-6,171.72

Finding the Fourth Proportional to 10,951.56, 15,111.93 and 6,171.72

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Solution

The fourth proportional to 10,951.56, 15,111.93 and 6,171.72 is: 8,516.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,951.56 : 15,111.93 = 6,171.72 : x
  2. Step 2: Convert to fraction form
    10,951.56/15,111.93 = 6,171.72/x
  3. Step 3: Cross multiply
    10,951.56x = 15,111.93 × 6,171.72
  4. Step 4: Simplify right side
    10,951.56x = 93,266,600.62
  5. Step 5: Solve for x
    x = 93,266,600.62/10,951.56
  6. Step 6: Final answer
    x = 8,516.28

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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.