Home / 13,949.16-19,249.56-7,661.46

Finding the Fourth Proportional to 13,949.16, 19,249.56 and 7,661.46

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Solution

The fourth proportional to 13,949.16, 19,249.56 and 7,661.46 is: 10,572.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,949.16 : 19,249.56 = 7,661.46 : x
  2. Step 2: Convert to fraction form
    13,949.16/19,249.56 = 7,661.46/x
  3. Step 3: Cross multiply
    13,949.16x = 19,249.56 × 7,661.46
  4. Step 4: Simplify right side
    13,949.16x = 147,479,733.96
  5. Step 5: Solve for x
    x = 147,479,733.96/13,949.16
  6. Step 6: Final answer
    x = 10,572.66

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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.