Home / 14,253.24-21,379.91-8,405.75

Finding the Fourth Proportional to 14,253.24, 21,379.91 and 8,405.75

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Solution

The fourth proportional to 14,253.24, 21,379.91 and 8,405.75 is: 12,608.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,253.24 : 21,379.91 = 8,405.75 : x
  2. Step 2: Convert to fraction form
    14,253.24/21,379.91 = 8,405.75/x
  3. Step 3: Cross multiply
    14,253.24x = 21,379.91 × 8,405.75
  4. Step 4: Simplify right side
    14,253.24x = 179,714,178.48
  5. Step 5: Solve for x
    x = 179,714,178.48/14,253.24
  6. Step 6: Final answer
    x = 12,608.65

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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.