Home / 18,831.38-25,987.79-10,333.87

Finding the Fourth Proportional to 18,831.38, 25,987.79 and 10,333.87

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Solution

The fourth proportional to 18,831.38, 25,987.79 and 10,333.87 is: 14,261.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,831.38 : 25,987.79 = 10,333.87 : x
  2. Step 2: Convert to fraction form
    18,831.38/25,987.79 = 10,333.87/x
  3. Step 3: Cross multiply
    18,831.38x = 25,987.79 × 10,333.87
  4. Step 4: Simplify right side
    18,831.38x = 268,554,443.45
  5. Step 5: Solve for x
    x = 268,554,443.45/18,831.38
  6. Step 6: Final answer
    x = 14,261.01

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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.