Home / 12,942.58-19,397.66-5,538.38

Finding the Fourth Proportional to 12,942.58, 19,397.66 and 5,538.38

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Solution

The fourth proportional to 12,942.58, 19,397.66 and 5,538.38 is: 8,300.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942.58 : 19,397.66 = 5,538.38 : x
  2. Step 2: Convert to fraction form
    12,942.58/19,397.66 = 5,538.38/x
  3. Step 3: Cross multiply
    12,942.58x = 19,397.66 × 5,538.38
  4. Step 4: Simplify right side
    12,942.58x = 107,431,612.19
  5. Step 5: Solve for x
    x = 107,431,612.19/12,942.58
  6. Step 6: Final answer
    x = 8,300.63

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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.