Home / 12,846.38-19,142.56-11,538.20

Finding the Fourth Proportional to 12,846.38, 19,142.56 and 11,538.20

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Solution

The fourth proportional to 12,846.38, 19,142.56 and 11,538.20 is: 17,193.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,846.38 : 19,142.56 = 11,538.20 : x
  2. Step 2: Convert to fraction form
    12,846.38/19,142.56 = 11,538.20/x
  3. Step 3: Cross multiply
    12,846.38x = 19,142.56 × 11,538.20
  4. Step 4: Simplify right side
    12,846.38x = 220,870,685.79
  5. Step 5: Solve for x
    x = 220,870,685.79/12,846.38
  6. Step 6: Final answer
    x = 17,193.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.