Home / 13,895.28-20,799.72-9,998.64

Finding the Fourth Proportional to 13,895.28, 20,799.72 and 9,998.64

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Solution

The fourth proportional to 13,895.28, 20,799.72 and 9,998.64 is: 14,966.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,895.28 : 20,799.72 = 9,998.64 : x
  2. Step 2: Convert to fraction form
    13,895.28/20,799.72 = 9,998.64/x
  3. Step 3: Cross multiply
    13,895.28x = 20,799.72 × 9,998.64
  4. Step 4: Simplify right side
    13,895.28x = 207,968,912.38
  5. Step 5: Solve for x
    x = 207,968,912.38/13,895.28
  6. Step 6: Final answer
    x = 14,966.87

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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.