Home / 13,949.12-20,923.68-4,088.32

Finding the Fourth Proportional to 13,949.12, 20,923.68 and 4,088.32

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Solution

The fourth proportional to 13,949.12, 20,923.68 and 4,088.32 is: 6,132.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,949.12 : 20,923.68 = 4,088.32 : x
  2. Step 2: Convert to fraction form
    13,949.12/20,923.68 = 4,088.32/x
  3. Step 3: Cross multiply
    13,949.12x = 20,923.68 × 4,088.32
  4. Step 4: Simplify right side
    13,949.12x = 85,542,699.42
  5. Step 5: Solve for x
    x = 85,542,699.42/13,949.12
  6. Step 6: Final answer
    x = 6,132.48

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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.