Home / 14,100.19-21,109.17-12,220.39

Finding the Fourth Proportional to 14,100.19, 21,109.17 and 12,220.39

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Solution

The fourth proportional to 14,100.19, 21,109.17 and 12,220.39 is: 18,294.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,100.19 : 21,109.17 = 12,220.39 : x
  2. Step 2: Convert to fraction form
    14,100.19/21,109.17 = 12,220.39/x
  3. Step 3: Cross multiply
    14,100.19x = 21,109.17 × 12,220.39
  4. Step 4: Simplify right side
    14,100.19x = 257,962,289.98
  5. Step 5: Solve for x
    x = 257,962,289.98/14,100.19
  6. Step 6: Final answer
    x = 18,294.95

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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.