Home / 10,109.78-13,942.77-6,571.70

Finding the Fourth Proportional to 10,109.78, 13,942.77 and 6,571.70

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Solution

The fourth proportional to 10,109.78, 13,942.77 and 6,571.70 is: 9,063.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,109.78 : 13,942.77 = 6,571.70 : x
  2. Step 2: Convert to fraction form
    10,109.78/13,942.77 = 6,571.70/x
  3. Step 3: Cross multiply
    10,109.78x = 13,942.77 × 6,571.70
  4. Step 4: Simplify right side
    10,109.78x = 91,627,701.61
  5. Step 5: Solve for x
    x = 91,627,701.61/10,109.78
  6. Step 6: Final answer
    x = 9,063.27

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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.