Home / 14,515.70-21,774.35-4,128.26

Finding the Fourth Proportional to 14,515.70, 21,774.35 and 4,128.26

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Solution

The fourth proportional to 14,515.70, 21,774.35 and 4,128.26 is: 6,192.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,515.70 : 21,774.35 = 4,128.26 : x
  2. Step 2: Convert to fraction form
    14,515.70/21,774.35 = 4,128.26/x
  3. Step 3: Cross multiply
    14,515.70x = 21,774.35 × 4,128.26
  4. Step 4: Simplify right side
    14,515.70x = 89,890,048.62
  5. Step 5: Solve for x
    x = 89,890,048.62/14,515.70
  6. Step 6: Final answer
    x = 6,192.61

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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.