Home / 10,151.75-14,009.42-6,172.12

Finding the Fourth Proportional to 10,151.75, 14,009.42 and 6,172.12

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Solution

The fourth proportional to 10,151.75, 14,009.42 and 6,172.12 is: 8,517.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,151.75 : 14,009.42 = 6,172.12 : x
  2. Step 2: Convert to fraction form
    10,151.75/14,009.42 = 6,172.12/x
  3. Step 3: Cross multiply
    10,151.75x = 14,009.42 × 6,172.12
  4. Step 4: Simplify right side
    10,151.75x = 86,467,821.37
  5. Step 5: Solve for x
    x = 86,467,821.37/10,151.75
  6. Step 6: Final answer
    x = 8,517.53

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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.