Home / 13,949.38-20,924.07-5,186.50

Finding the Fourth Proportional to 13,949.38, 20,924.07 and 5,186.50

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Solution

The fourth proportional to 13,949.38, 20,924.07 and 5,186.50 is: 7,779.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,949.38 : 20,924.07 = 5,186.50 : x
  2. Step 2: Convert to fraction form
    13,949.38/20,924.07 = 5,186.50/x
  3. Step 3: Cross multiply
    13,949.38x = 20,924.07 × 5,186.50
  4. Step 4: Simplify right side
    13,949.38x = 108,522,689.06
  5. Step 5: Solve for x
    x = 108,522,689.06/13,949.38
  6. Step 6: Final answer
    x = 7,779.75

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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.