Home / 18,831.11-25,989-10,875.83

Finding the Fourth Proportional to 18,831.11, 25,989 and 10,875.83

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Solution

The fourth proportional to 18,831.11, 25,989 and 10,875.83 is: 15,009.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,831.11 : 25,989 = 10,875.83 : x
  2. Step 2: Convert to fraction form
    18,831.11/25,989 = 10,875.83/x
  3. Step 3: Cross multiply
    18,831.11x = 25,989 × 10,875.83
  4. Step 4: Simplify right side
    18,831.11x = 282,651,945.87
  5. Step 5: Solve for x
    x = 282,651,945.87/18,831.11
  6. Step 6: Final answer
    x = 15,009.84

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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.