Home / 14,121.10-21,196.97-10,621.09

Finding the Fourth Proportional to 14,121.10, 21,196.97 and 10,621.09

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Solution

The fourth proportional to 14,121.10, 21,196.97 and 10,621.09 is: 15,943.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.10 : 21,196.97 = 10,621.09 : x
  2. Step 2: Convert to fraction form
    14,121.10/21,196.97 = 10,621.09/x
  3. Step 3: Cross multiply
    14,121.10x = 21,196.97 × 10,621.09
  4. Step 4: Simplify right side
    14,121.10x = 225,134,767.01
  5. Step 5: Solve for x
    x = 225,134,767.01/14,121.10
  6. Step 6: Final answer
    x = 15,943.15

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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.