Home / 13,896.12-20,889.36-11,152.84

Finding the Fourth Proportional to 13,896.12, 20,889.36 and 11,152.84

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Solution

The fourth proportional to 13,896.12, 20,889.36 and 11,152.84 is: 16,765.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,896.12 : 20,889.36 = 11,152.84 : x
  2. Step 2: Convert to fraction form
    13,896.12/20,889.36 = 11,152.84/x
  3. Step 3: Cross multiply
    13,896.12x = 20,889.36 × 11,152.84
  4. Step 4: Simplify right side
    13,896.12x = 232,975,689.78
  5. Step 5: Solve for x
    x = 232,975,689.78/13,896.12
  6. Step 6: Final answer
    x = 16,765.52

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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.