Home / 13,615.43-18,785.97-7,946.94

Finding the Fourth Proportional to 13,615.43, 18,785.97 and 7,946.94

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Solution

The fourth proportional to 13,615.43, 18,785.97 and 7,946.94 is: 10,964.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,615.43 : 18,785.97 = 7,946.94 : x
  2. Step 2: Convert to fraction form
    13,615.43/18,785.97 = 7,946.94/x
  3. Step 3: Cross multiply
    13,615.43x = 18,785.97 × 7,946.94
  4. Step 4: Simplify right side
    13,615.43x = 149,290,976.43
  5. Step 5: Solve for x
    x = 149,290,976.43/13,615.43
  6. Step 6: Final answer
    x = 10,964.84

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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.