Home / 14,399.38-19,863.57-9,915.36

Finding the Fourth Proportional to 14,399.38, 19,863.57 and 9,915.36

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Solution

The fourth proportional to 14,399.38, 19,863.57 and 9,915.36 is: 13,677.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,399.38 : 19,863.57 = 9,915.36 : x
  2. Step 2: Convert to fraction form
    14,399.38/19,863.57 = 9,915.36/x
  3. Step 3: Cross multiply
    14,399.38x = 19,863.57 × 9,915.36
  4. Step 4: Simplify right side
    14,399.38x = 196,954,447.44
  5. Step 5: Solve for x
    x = 196,954,447.44/14,399.38
  6. Step 6: Final answer
    x = 13,677.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.