Home / 14,107.44-21,194.08-12,139.20

Finding the Fourth Proportional to 14,107.44, 21,194.08 and 12,139.20

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Solution

The fourth proportional to 14,107.44, 21,194.08 and 12,139.20 is: 18,237.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,107.44 : 21,194.08 = 12,139.20 : x
  2. Step 2: Convert to fraction form
    14,107.44/21,194.08 = 12,139.20/x
  3. Step 3: Cross multiply
    14,107.44x = 21,194.08 × 12,139.20
  4. Step 4: Simplify right side
    14,107.44x = 257,279,175.94
  5. Step 5: Solve for x
    x = 257,279,175.94/14,107.44
  6. Step 6: Final answer
    x = 18,237.13

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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.