Home / 9,141.90-12,615.66-5,162.73

Finding the Fourth Proportional to 9,141.90, 12,615.66 and 5,162.73

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Solution

The fourth proportional to 9,141.90, 12,615.66 and 5,162.73 is: 7,124.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,141.90 : 12,615.66 = 5,162.73 : x
  2. Step 2: Convert to fraction form
    9,141.90/12,615.66 = 5,162.73/x
  3. Step 3: Cross multiply
    9,141.90x = 12,615.66 × 5,162.73
  4. Step 4: Simplify right side
    9,141.90x = 65,131,246.35
  5. Step 5: Solve for x
    x = 65,131,246.35/9,141.90
  6. Step 6: Final answer
    x = 7,124.48

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Half scale
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Double scale
Find fourth proportional to 9,142.90, 12,617.04 and 5,163.73
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.