Home / 9,129.27-12,596.94-5,149.47

Finding the Fourth Proportional to 9,129.27, 12,596.94 and 5,149.47

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Solution

The fourth proportional to 9,129.27, 12,596.94 and 5,149.47 is: 7,105.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.27 : 12,596.94 = 5,149.47 : x
  2. Step 2: Convert to fraction form
    9,129.27/12,596.94 = 5,149.47/x
  3. Step 3: Cross multiply
    9,129.27x = 12,596.94 × 5,149.47
  4. Step 4: Simplify right side
    9,129.27x = 64,867,564.62
  5. Step 5: Solve for x
    x = 64,867,564.62/9,129.27
  6. Step 6: Final answer
    x = 7,105.45

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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.