Home / 11,974.88-17,946.12-9,378.56

Finding the Fourth Proportional to 11,974.88, 17,946.12 and 9,378.56

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Solution

The fourth proportional to 11,974.88, 17,946.12 and 9,378.56 is: 14,055.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,974.88 : 17,946.12 = 9,378.56 : x
  2. Step 2: Convert to fraction form
    11,974.88/17,946.12 = 9,378.56/x
  3. Step 3: Cross multiply
    11,974.88x = 17,946.12 × 9,378.56
  4. Step 4: Simplify right side
    11,974.88x = 168,308,763.19
  5. Step 5: Solve for x
    x = 168,308,763.19/11,974.88
  6. Step 6: Final answer
    x = 14,055.15

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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.