Home / 8,142.26-11,234.23-5,117.85

Finding the Fourth Proportional to 8,142.26, 11,234.23 and 5,117.85

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Solution

The fourth proportional to 8,142.26, 11,234.23 and 5,117.85 is: 7,061.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142.26 : 11,234.23 = 5,117.85 : x
  2. Step 2: Convert to fraction form
    8,142.26/11,234.23 = 5,117.85/x
  3. Step 3: Cross multiply
    8,142.26x = 11,234.23 × 5,117.85
  4. Step 4: Simplify right side
    8,142.26x = 57,495,091.21
  5. Step 5: Solve for x
    x = 57,495,091.21/8,142.26
  6. Step 6: Final answer
    x = 7,061.32

Related Problems

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Half scale
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Double scale
Find fourth proportional to 8,143.26, 11,235.61 and 5,118.85
Similar ratio
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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.