Home / 13,972.29-20,958.71-11,186.03

Finding the Fourth Proportional to 13,972.29, 20,958.71 and 11,186.03

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Solution

The fourth proportional to 13,972.29, 20,958.71 and 11,186.03 is: 16,779.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972.29 : 20,958.71 = 11,186.03 : x
  2. Step 2: Convert to fraction form
    13,972.29/20,958.71 = 11,186.03/x
  3. Step 3: Cross multiply
    13,972.29x = 20,958.71 × 11,186.03
  4. Step 4: Simplify right side
    13,972.29x = 234,444,598.10
  5. Step 5: Solve for x
    x = 234,444,598.10/13,972.29
  6. Step 6: Final answer
    x = 16,779.25

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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.