Home / 14,240.85-21,363.71-4,379.91

Finding the Fourth Proportional to 14,240.85, 21,363.71 and 4,379.91

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Solution

The fourth proportional to 14,240.85, 21,363.71 and 4,379.91 is: 6,570.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,240.85 : 21,363.71 = 4,379.91 : x
  2. Step 2: Convert to fraction form
    14,240.85/21,363.71 = 4,379.91/x
  3. Step 3: Cross multiply
    14,240.85x = 21,363.71 × 4,379.91
  4. Step 4: Simplify right side
    14,240.85x = 93,571,127.07
  5. Step 5: Solve for x
    x = 93,571,127.07/14,240.85
  6. Step 6: Final answer
    x = 6,570.61

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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.