Home / 13,831.71-19,087.19-7,544.09

Finding the Fourth Proportional to 13,831.71, 19,087.19 and 7,544.09

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Solution

The fourth proportional to 13,831.71, 19,087.19 and 7,544.09 is: 10,410.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,831.71 : 19,087.19 = 7,544.09 : x
  2. Step 2: Convert to fraction form
    13,831.71/19,087.19 = 7,544.09/x
  3. Step 3: Cross multiply
    13,831.71x = 19,087.19 × 7,544.09
  4. Step 4: Simplify right side
    13,831.71x = 143,995,346.05
  5. Step 5: Solve for x
    x = 143,995,346.05/13,831.71
  6. Step 6: Final answer
    x = 10,410.52

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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.