Home / 9,351.36-12,904.83-5,159.61

Finding the Fourth Proportional to 9,351.36, 12,904.83 and 5,159.61

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Solution

The fourth proportional to 9,351.36, 12,904.83 and 5,159.61 is: 7,120.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,351.36 : 12,904.83 = 5,159.61 : x
  2. Step 2: Convert to fraction form
    9,351.36/12,904.83 = 5,159.61/x
  3. Step 3: Cross multiply
    9,351.36x = 12,904.83 × 5,159.61
  4. Step 4: Simplify right side
    9,351.36x = 66,583,889.92
  5. Step 5: Solve for x
    x = 66,583,889.92/9,351.36
  6. Step 6: Final answer
    x = 7,120.24

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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.