Home / 12,815.70-19,224.03-4,917.30

Finding the Fourth Proportional to 12,815.70, 19,224.03 and 4,917.30

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Solution

The fourth proportional to 12,815.70, 19,224.03 and 4,917.30 is: 7,376.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,815.70 : 19,224.03 = 4,917.30 : x
  2. Step 2: Convert to fraction form
    12,815.70/19,224.03 = 4,917.30/x
  3. Step 3: Cross multiply
    12,815.70x = 19,224.03 × 4,917.30
  4. Step 4: Simplify right side
    12,815.70x = 94,530,322.72
  5. Step 5: Solve for x
    x = 94,530,322.72/12,815.70
  6. Step 6: Final answer
    x = 7,376.13

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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.