Home / 18,831.90-25,988.32-10,874.82

Finding the Fourth Proportional to 18,831.90, 25,988.32 and 10,874.82

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Solution

The fourth proportional to 18,831.90, 25,988.32 and 10,874.82 is: 15,007.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,831.90 : 25,988.32 = 10,874.82 : x
  2. Step 2: Convert to fraction form
    18,831.90/25,988.32 = 10,874.82/x
  3. Step 3: Cross multiply
    18,831.90x = 25,988.32 × 10,874.82
  4. Step 4: Simplify right side
    18,831.90x = 282,618,302.10
  5. Step 5: Solve for x
    x = 282,618,302.10/18,831.90
  6. Step 6: Final answer
    x = 15,007.42

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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.