Home / 12,708.64-19,063.14-3,943.36

Finding the Fourth Proportional to 12,708.64, 19,063.14 and 3,943.36

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Solution

The fourth proportional to 12,708.64, 19,063.14 and 3,943.36 is: 5,915.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,708.64 : 19,063.14 = 3,943.36 : x
  2. Step 2: Convert to fraction form
    12,708.64/19,063.14 = 3,943.36/x
  3. Step 3: Cross multiply
    12,708.64x = 19,063.14 × 3,943.36
  4. Step 4: Simplify right side
    12,708.64x = 75,172,823.75
  5. Step 5: Solve for x
    x = 75,172,823.75/12,708.64
  6. Step 6: Final answer
    x = 5,915.10

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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.