Home / 14,110.28-19,471.24-8,142.20

Finding the Fourth Proportional to 14,110.28, 19,471.24 and 8,142.20

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Solution

The fourth proportional to 14,110.28, 19,471.24 and 8,142.20 is: 11,235.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,110.28 : 19,471.24 = 8,142.20 : x
  2. Step 2: Convert to fraction form
    14,110.28/19,471.24 = 8,142.20/x
  3. Step 3: Cross multiply
    14,110.28x = 19,471.24 × 8,142.20
  4. Step 4: Simplify right side
    14,110.28x = 158,538,730.33
  5. Step 5: Solve for x
    x = 158,538,730.33/14,110.28
  6. Step 6: Final answer
    x = 11,235.69

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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.