Home / 18,831.57-25,988.49-10,874.54

Finding the Fourth Proportional to 18,831.57, 25,988.49 and 10,874.54

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Solution

The fourth proportional to 18,831.57, 25,988.49 and 10,874.54 is: 15,007.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,831.57 : 25,988.49 = 10,874.54 : x
  2. Step 2: Convert to fraction form
    18,831.57/25,988.49 = 10,874.54/x
  3. Step 3: Cross multiply
    18,831.57x = 25,988.49 × 10,874.54
  4. Step 4: Simplify right side
    18,831.57x = 282,612,744.10
  5. Step 5: Solve for x
    x = 282,612,744.10/18,831.57
  6. Step 6: Final answer
    x = 15,007.39

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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.