Home / 18,831.25-25,986.89-10,873.30

Finding the Fourth Proportional to 18,831.25, 25,986.89 and 10,873.30

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Solution

The fourth proportional to 18,831.25, 25,986.89 and 10,873.30 is: 15,005.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,831.25 : 25,986.89 = 10,873.30 : x
  2. Step 2: Convert to fraction form
    18,831.25/25,986.89 = 10,873.30/x
  3. Step 3: Cross multiply
    18,831.25x = 25,986.89 × 10,873.30
  4. Step 4: Simplify right side
    18,831.25x = 282,563,251.04
  5. Step 5: Solve for x
    x = 282,563,251.04/18,831.25
  6. Step 6: Final answer
    x = 15,005.02

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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.