Home / 14,151.66-21,221.37-7,127.34

Finding the Fourth Proportional to 14,151.66, 21,221.37 and 7,127.34

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Solution

The fourth proportional to 14,151.66, 21,221.37 and 7,127.34 is: 10,687.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,151.66 : 21,221.37 = 7,127.34 : x
  2. Step 2: Convert to fraction form
    14,151.66/21,221.37 = 7,127.34/x
  3. Step 3: Cross multiply
    14,151.66x = 21,221.37 × 7,127.34
  4. Step 4: Simplify right side
    14,151.66x = 151,251,919.26
  5. Step 5: Solve for x
    x = 151,251,919.26/14,151.66
  6. Step 6: Final answer
    x = 10,687.93

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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.