Home / 12,719.17-19,078.97-4,399.40

Finding the Fourth Proportional to 12,719.17, 19,078.97 and 4,399.40

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Solution

The fourth proportional to 12,719.17, 19,078.97 and 4,399.40 is: 6,599.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,719.17 : 19,078.97 = 4,399.40 : x
  2. Step 2: Convert to fraction form
    12,719.17/19,078.97 = 4,399.40/x
  3. Step 3: Cross multiply
    12,719.17x = 19,078.97 × 4,399.40
  4. Step 4: Simplify right side
    12,719.17x = 83,936,020.62
  5. Step 5: Solve for x
    x = 83,936,020.62/12,719.17
  6. Step 6: Final answer
    x = 6,599.17

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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.