Home / 14,621.76-20,179.68-10,144.32

Finding the Fourth Proportional to 14,621.76, 20,179.68 and 10,144.32

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Solution

The fourth proportional to 14,621.76, 20,179.68 and 10,144.32 is: 14,000.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,621.76 : 20,179.68 = 10,144.32 : x
  2. Step 2: Convert to fraction form
    14,621.76/20,179.68 = 10,144.32/x
  3. Step 3: Cross multiply
    14,621.76x = 20,179.68 × 10,144.32
  4. Step 4: Simplify right side
    14,621.76x = 204,709,131.42
  5. Step 5: Solve for x
    x = 204,709,131.42/14,621.76
  6. Step 6: Final answer
    x = 14,000.31

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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.