Home / 14,126.72-21,181.90-5,356.86

Finding the Fourth Proportional to 14,126.72, 21,181.90 and 5,356.86

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Solution

The fourth proportional to 14,126.72, 21,181.90 and 5,356.86 is: 8,032.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,126.72 : 21,181.90 = 5,356.86 : x
  2. Step 2: Convert to fraction form
    14,126.72/21,181.90 = 5,356.86/x
  3. Step 3: Cross multiply
    14,126.72x = 21,181.90 × 5,356.86
  4. Step 4: Simplify right side
    14,126.72x = 113,468,472.83
  5. Step 5: Solve for x
    x = 113,468,472.83/14,126.72
  6. Step 6: Final answer
    x = 8,032.19

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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.