Home / 19,410.43-29,121.79-6,930.18

Finding the Fourth Proportional to 19,410.43, 29,121.79 and 6,930.18

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Solution

The fourth proportional to 19,410.43, 29,121.79 and 6,930.18 is: 10,397.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,410.43 : 29,121.79 = 6,930.18 : x
  2. Step 2: Convert to fraction form
    19,410.43/29,121.79 = 6,930.18/x
  3. Step 3: Cross multiply
    19,410.43x = 29,121.79 × 6,930.18
  4. Step 4: Simplify right side
    19,410.43x = 201,819,246.62
  5. Step 5: Solve for x
    x = 201,819,246.62/19,410.43
  6. Step 6: Final answer
    x = 10,397.47

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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.