Home / 13,665.35-18,859.97-7,698.17

Finding the Fourth Proportional to 13,665.35, 18,859.97 and 7,698.17

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Solution

The fourth proportional to 13,665.35, 18,859.97 and 7,698.17 is: 10,624.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,665.35 : 18,859.97 = 7,698.17 : x
  2. Step 2: Convert to fraction form
    13,665.35/18,859.97 = 7,698.17/x
  3. Step 3: Cross multiply
    13,665.35x = 18,859.97 × 7,698.17
  4. Step 4: Simplify right side
    13,665.35x = 145,187,255.25
  5. Step 5: Solve for x
    x = 145,187,255.25/13,665.35
  6. Step 6: Final answer
    x = 10,624.48

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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.