Home / 13,975.13-20,983.46-5,671.42

Finding the Fourth Proportional to 13,975.13, 20,983.46 and 5,671.42

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Solution

The fourth proportional to 13,975.13, 20,983.46 and 5,671.42 is: 8,515.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.13 : 20,983.46 = 5,671.42 : x
  2. Step 2: Convert to fraction form
    13,975.13/20,983.46 = 5,671.42/x
  3. Step 3: Cross multiply
    13,975.13x = 20,983.46 × 5,671.42
  4. Step 4: Simplify right side
    13,975.13x = 119,005,933.90
  5. Step 5: Solve for x
    x = 119,005,933.90/13,975.13
  6. Step 6: Final answer
    x = 8,515.55

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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.