Home / 14,370.06-21,555.09-3,981.54

Finding the Fourth Proportional to 14,370.06, 21,555.09 and 3,981.54

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Solution

The fourth proportional to 14,370.06, 21,555.09 and 3,981.54 is: 5,972.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,370.06 : 21,555.09 = 3,981.54 : x
  2. Step 2: Convert to fraction form
    14,370.06/21,555.09 = 3,981.54/x
  3. Step 3: Cross multiply
    14,370.06x = 21,555.09 × 3,981.54
  4. Step 4: Simplify right side
    14,370.06x = 85,822,453.04
  5. Step 5: Solve for x
    x = 85,822,453.04/14,370.06
  6. Step 6: Final answer
    x = 5,972.31

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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.