Home / 14,119.32-21,165.21-6,721.79

Finding the Fourth Proportional to 14,119.32, 21,165.21 and 6,721.79

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Solution

The fourth proportional to 14,119.32, 21,165.21 and 6,721.79 is: 10,076.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,119.32 : 21,165.21 = 6,721.79 : x
  2. Step 2: Convert to fraction form
    14,119.32/21,165.21 = 6,721.79/x
  3. Step 3: Cross multiply
    14,119.32x = 21,165.21 × 6,721.79
  4. Step 4: Simplify right side
    14,119.32x = 142,268,149.84
  5. Step 5: Solve for x
    x = 142,268,149.84/14,119.32
  6. Step 6: Final answer
    x = 10,076.13

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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.