Home / 11,395.91-15,728.36-7,367.69

Finding the Fourth Proportional to 11,395.91, 15,728.36 and 7,367.69

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Solution

The fourth proportional to 11,395.91, 15,728.36 and 7,367.69 is: 10,168.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,395.91 : 15,728.36 = 7,367.69 : x
  2. Step 2: Convert to fraction form
    11,395.91/15,728.36 = 7,367.69/x
  3. Step 3: Cross multiply
    11,395.91x = 15,728.36 × 7,367.69
  4. Step 4: Simplify right side
    11,395.91x = 115,881,565.21
  5. Step 5: Solve for x
    x = 115,881,565.21/11,395.91
  6. Step 6: Final answer
    x = 10,168.70

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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.