Home / 8,315.14-11,476.32-7,941.46

Finding the Fourth Proportional to 8,315.14, 11,476.32 and 7,941.46

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Solution

The fourth proportional to 8,315.14, 11,476.32 and 7,941.46 is: 10,960.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315.14 : 11,476.32 = 7,941.46 : x
  2. Step 2: Convert to fraction form
    8,315.14/11,476.32 = 7,941.46/x
  3. Step 3: Cross multiply
    8,315.14x = 11,476.32 × 7,941.46
  4. Step 4: Simplify right side
    8,315.14x = 91,138,736.23
  5. Step 5: Solve for x
    x = 91,138,736.23/8,315.14
  6. Step 6: Final answer
    x = 10,960.58

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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.