Home / 26,912.97-40,369.40-9,145.47

Finding the Fourth Proportional to 26,912.97, 40,369.40 and 9,145.47

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Solution

The fourth proportional to 26,912.97, 40,369.40 and 9,145.47 is: 13,718.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,912.97 : 40,369.40 = 9,145.47 : x
  2. Step 2: Convert to fraction form
    26,912.97/40,369.40 = 9,145.47/x
  3. Step 3: Cross multiply
    26,912.97x = 40,369.40 × 9,145.47
  4. Step 4: Simplify right side
    26,912.97x = 369,197,136.62
  5. Step 5: Solve for x
    x = 369,197,136.62/26,912.97
  6. Step 6: Final answer
    x = 13,718.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.