Home / 14,084.06-21,105.12-12,839.32

Finding the Fourth Proportional to 14,084.06, 21,105.12 and 12,839.32

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Solution

The fourth proportional to 14,084.06, 21,105.12 and 12,839.32 is: 19,239.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,084.06 : 21,105.12 = 12,839.32 : x
  2. Step 2: Convert to fraction form
    14,084.06/21,105.12 = 12,839.32/x
  3. Step 3: Cross multiply
    14,084.06x = 21,105.12 × 12,839.32
  4. Step 4: Simplify right side
    14,084.06x = 270,975,389.32
  5. Step 5: Solve for x
    x = 270,975,389.32/14,084.06
  6. Step 6: Final answer
    x = 19,239.86

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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.