Home / 10,121.07-13,972.86-6,769.56

Finding the Fourth Proportional to 10,121.07, 13,972.86 and 6,769.56

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Solution

The fourth proportional to 10,121.07, 13,972.86 and 6,769.56 is: 9,345.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,121.07 : 13,972.86 = 6,769.56 : x
  2. Step 2: Convert to fraction form
    10,121.07/13,972.86 = 6,769.56/x
  3. Step 3: Cross multiply
    10,121.07x = 13,972.86 × 6,769.56
  4. Step 4: Simplify right side
    10,121.07x = 94,590,114.14
  5. Step 5: Solve for x
    x = 94,590,114.14/10,121.07
  6. Step 6: Final answer
    x = 9,345.86

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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.