Home / 12,772.06-17,619.92-7,318.23

Finding the Fourth Proportional to 12,772.06, 17,619.92 and 7,318.23

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Solution

The fourth proportional to 12,772.06, 17,619.92 and 7,318.23 is: 10,095.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,772.06 : 17,619.92 = 7,318.23 : x
  2. Step 2: Convert to fraction form
    12,772.06/17,619.92 = 7,318.23/x
  3. Step 3: Cross multiply
    12,772.06x = 17,619.92 × 7,318.23
  4. Step 4: Simplify right side
    12,772.06x = 128,946,627.14
  5. Step 5: Solve for x
    x = 128,946,627.14/12,772.06
  6. Step 6: Final answer
    x = 10,095.99

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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.