Home / 13,831.41-19,088.95-7,863.97

Finding the Fourth Proportional to 13,831.41, 19,088.95 and 7,863.97

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Solution

The fourth proportional to 13,831.41, 19,088.95 and 7,863.97 is: 10,853.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,831.41 : 19,088.95 = 7,863.97 : x
  2. Step 2: Convert to fraction form
    13,831.41/19,088.95 = 7,863.97/x
  3. Step 3: Cross multiply
    13,831.41x = 19,088.95 × 7,863.97
  4. Step 4: Simplify right side
    13,831.41x = 150,114,902.07
  5. Step 5: Solve for x
    x = 150,114,902.07/13,831.41
  6. Step 6: Final answer
    x = 10,853.19

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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.