Home / 14,172.62-19,555.56-7,884.99

Finding the Fourth Proportional to 14,172.62, 19,555.56 and 7,884.99

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Solution

The fourth proportional to 14,172.62, 19,555.56 and 7,884.99 is: 10,879.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,172.62 : 19,555.56 = 7,884.99 : x
  2. Step 2: Convert to fraction form
    14,172.62/19,555.56 = 7,884.99/x
  3. Step 3: Cross multiply
    14,172.62x = 19,555.56 × 7,884.99
  4. Step 4: Simplify right side
    14,172.62x = 154,195,395.04
  5. Step 5: Solve for x
    x = 154,195,395.04/14,172.62
  6. Step 6: Final answer
    x = 10,879.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.