Home / 12,971.46-19,454.46-5,579.40

Finding the Fourth Proportional to 12,971.46, 19,454.46 and 5,579.40

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Solution

The fourth proportional to 12,971.46, 19,454.46 and 5,579.40 is: 8,367.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,971.46 : 19,454.46 = 5,579.40 : x
  2. Step 2: Convert to fraction form
    12,971.46/19,454.46 = 5,579.40/x
  3. Step 3: Cross multiply
    12,971.46x = 19,454.46 × 5,579.40
  4. Step 4: Simplify right side
    12,971.46x = 108,544,214.12
  5. Step 5: Solve for x
    x = 108,544,214.12/12,971.46
  6. Step 6: Final answer
    x = 8,367.93

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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.