Home / 18,831.89-25,987.77-10,873.94

Finding the Fourth Proportional to 18,831.89, 25,987.77 and 10,873.94

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Solution

The fourth proportional to 18,831.89, 25,987.77 and 10,873.94 is: 15,005.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,831.89 : 25,987.77 = 10,873.94 : x
  2. Step 2: Convert to fraction form
    18,831.89/25,987.77 = 10,873.94/x
  3. Step 3: Cross multiply
    18,831.89x = 25,987.77 × 10,873.94
  4. Step 4: Simplify right side
    18,831.89x = 282,589,321.77
  5. Step 5: Solve for x
    x = 282,589,321.77/18,831.89
  6. Step 6: Final answer
    x = 15,005.89

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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.