Home / 13,974.50-20,955.60-7,399.15

Finding the Fourth Proportional to 13,974.50, 20,955.60 and 7,399.15

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Solution

The fourth proportional to 13,974.50, 20,955.60 and 7,399.15 is: 11,095.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,974.50 : 20,955.60 = 7,399.15 : x
  2. Step 2: Convert to fraction form
    13,974.50/20,955.60 = 7,399.15/x
  3. Step 3: Cross multiply
    13,974.50x = 20,955.60 × 7,399.15
  4. Step 4: Simplify right side
    13,974.50x = 155,053,627.74
  5. Step 5: Solve for x
    x = 155,053,627.74/13,974.50
  6. Step 6: Final answer
    x = 11,095.47

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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.