Home / 14,108.55-21,162.93-4,247.79

Finding the Fourth Proportional to 14,108.55, 21,162.93 and 4,247.79

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Solution

The fourth proportional to 14,108.55, 21,162.93 and 4,247.79 is: 6,371.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,108.55 : 21,162.93 = 4,247.79 : x
  2. Step 2: Convert to fraction form
    14,108.55/21,162.93 = 4,247.79/x
  3. Step 3: Cross multiply
    14,108.55x = 21,162.93 × 4,247.79
  4. Step 4: Simplify right side
    14,108.55x = 89,895,682.42
  5. Step 5: Solve for x
    x = 89,895,682.42/14,108.55
  6. Step 6: Final answer
    x = 6,371.72

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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.