Home / 13,621.28-20,426.06-6,230.42

Finding the Fourth Proportional to 13,621.28, 20,426.06 and 6,230.42

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Solution

The fourth proportional to 13,621.28, 20,426.06 and 6,230.42 is: 9,342.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621.28 : 20,426.06 = 6,230.42 : x
  2. Step 2: Convert to fraction form
    13,621.28/20,426.06 = 6,230.42/x
  3. Step 3: Cross multiply
    13,621.28x = 20,426.06 × 6,230.42
  4. Step 4: Simplify right side
    13,621.28x = 127,262,932.75
  5. Step 5: Solve for x
    x = 127,262,932.75/13,621.28
  6. Step 6: Final answer
    x = 9,342.95

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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.