Home / 10,721.44-16,080.54-4,146.81

Finding the Fourth Proportional to 10,721.44, 16,080.54 and 4,146.81

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Solution

The fourth proportional to 10,721.44, 16,080.54 and 4,146.81 is: 6,219.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,721.44 : 16,080.54 = 4,146.81 : x
  2. Step 2: Convert to fraction form
    10,721.44/16,080.54 = 4,146.81/x
  3. Step 3: Cross multiply
    10,721.44x = 16,080.54 × 4,146.81
  4. Step 4: Simplify right side
    10,721.44x = 66,682,944.08
  5. Step 5: Solve for x
    x = 66,682,944.08/10,721.44
  6. Step 6: Final answer
    x = 6,219.59

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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.