Home / 8,109.47-11,191.05-4,572.69

Finding the Fourth Proportional to 8,109.47, 11,191.05 and 4,572.69

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Solution

The fourth proportional to 8,109.47, 11,191.05 and 4,572.69 is: 6,310.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.47 : 11,191.05 = 4,572.69 : x
  2. Step 2: Convert to fraction form
    8,109.47/11,191.05 = 4,572.69/x
  3. Step 3: Cross multiply
    8,109.47x = 11,191.05 × 4,572.69
  4. Step 4: Simplify right side
    8,109.47x = 51,173,202.42
  5. Step 5: Solve for x
    x = 51,173,202.42/8,109.47
  6. Step 6: Final answer
    x = 6,310.31

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Half scale
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Double scale
Find fourth proportional to 8,110.47, 11,192.43 and 4,573.69
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.