Home / 14,942.28-20,621.54-8,229.16

Finding the Fourth Proportional to 14,942.28, 20,621.54 and 8,229.16

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Solution

The fourth proportional to 14,942.28, 20,621.54 and 8,229.16 is: 11,356.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,942.28 : 20,621.54 = 8,229.16 : x
  2. Step 2: Convert to fraction form
    14,942.28/20,621.54 = 8,229.16/x
  3. Step 3: Cross multiply
    14,942.28x = 20,621.54 × 8,229.16
  4. Step 4: Simplify right side
    14,942.28x = 169,697,952.11
  5. Step 5: Solve for x
    x = 169,697,952.11/14,942.28
  6. Step 6: Final answer
    x = 11,356.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.