Home / 13,831.05-19,084.38-7,862.37

Finding the Fourth Proportional to 13,831.05, 19,084.38 and 7,862.37

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Solution

The fourth proportional to 13,831.05, 19,084.38 and 7,862.37 is: 10,848.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,831.05 : 19,084.38 = 7,862.37 : x
  2. Step 2: Convert to fraction form
    13,831.05/19,084.38 = 7,862.37/x
  3. Step 3: Cross multiply
    13,831.05x = 19,084.38 × 7,862.37
  4. Step 4: Simplify right side
    13,831.05x = 150,048,355.73
  5. Step 5: Solve for x
    x = 150,048,355.73/13,831.05
  6. Step 6: Final answer
    x = 10,848.66

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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.