Home / 14,440.85-21,619.16-12,940.19

Finding the Fourth Proportional to 14,440.85, 21,619.16 and 12,940.19

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Solution

The fourth proportional to 14,440.85, 21,619.16 and 12,940.19 is: 19,372.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,440.85 : 21,619.16 = 12,940.19 : x
  2. Step 2: Convert to fraction form
    14,440.85/21,619.16 = 12,940.19/x
  3. Step 3: Cross multiply
    14,440.85x = 21,619.16 × 12,940.19
  4. Step 4: Simplify right side
    14,440.85x = 279,755,973.34
  5. Step 5: Solve for x
    x = 279,755,973.34/14,440.85
  6. Step 6: Final answer
    x = 19,372.54

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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.