Home / 14,051.28-19,388.58-8,083.20

Finding the Fourth Proportional to 14,051.28, 19,388.58 and 8,083.20

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Solution

The fourth proportional to 14,051.28, 19,388.58 and 8,083.20 is: 11,153.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,051.28 : 19,388.58 = 8,083.20 : x
  2. Step 2: Convert to fraction form
    14,051.28/19,388.58 = 8,083.20/x
  3. Step 3: Cross multiply
    14,051.28x = 19,388.58 × 8,083.20
  4. Step 4: Simplify right side
    14,051.28x = 156,721,769.86
  5. Step 5: Solve for x
    x = 156,721,769.86/14,051.28
  6. Step 6: Final answer
    x = 11,153.56

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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.