Home / 14,118.06-21,135.49-12,366.49

Finding the Fourth Proportional to 14,118.06, 21,135.49 and 12,366.49

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Solution

The fourth proportional to 14,118.06, 21,135.49 and 12,366.49 is: 18,513.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,118.06 : 21,135.49 = 12,366.49 : x
  2. Step 2: Convert to fraction form
    14,118.06/21,135.49 = 12,366.49/x
  3. Step 3: Cross multiply
    14,118.06x = 21,135.49 × 12,366.49
  4. Step 4: Simplify right side
    14,118.06x = 261,371,728.88
  5. Step 5: Solve for x
    x = 261,371,728.88/14,118.06
  6. Step 6: Final answer
    x = 18,513.29

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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.