Home / 14,145.18-21,185.48-6,754.86

Finding the Fourth Proportional to 14,145.18, 21,185.48 and 6,754.86

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Solution

The fourth proportional to 14,145.18, 21,185.48 and 6,754.86 is: 10,116.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,145.18 : 21,185.48 = 6,754.86 : x
  2. Step 2: Convert to fraction form
    14,145.18/21,185.48 = 6,754.86/x
  3. Step 3: Cross multiply
    14,145.18x = 21,185.48 × 6,754.86
  4. Step 4: Simplify right side
    14,145.18x = 143,104,917.66
  5. Step 5: Solve for x
    x = 143,104,917.66/14,145.18
  6. Step 6: Final answer
    x = 10,116.87

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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.