Home / 13,937.91-19,229.60-7,965.35

Finding the Fourth Proportional to 13,937.91, 19,229.60 and 7,965.35

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Solution

The fourth proportional to 13,937.91, 19,229.60 and 7,965.35 is: 10,989.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,937.91 : 19,229.60 = 7,965.35 : x
  2. Step 2: Convert to fraction form
    13,937.91/19,229.60 = 7,965.35/x
  3. Step 3: Cross multiply
    13,937.91x = 19,229.60 × 7,965.35
  4. Step 4: Simplify right side
    13,937.91x = 153,170,358.39
  5. Step 5: Solve for x
    x = 153,170,358.39/13,937.91
  6. Step 6: Final answer
    x = 10,989.48

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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.