Home / 18,718.12-25,831.62-10,761.64

Finding the Fourth Proportional to 18,718.12, 25,831.62 and 10,761.64

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Solution

The fourth proportional to 18,718.12, 25,831.62 and 10,761.64 is: 14,851.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,718.12 : 25,831.62 = 10,761.64 : x
  2. Step 2: Convert to fraction form
    18,718.12/25,831.62 = 10,761.64/x
  3. Step 3: Cross multiply
    18,718.12x = 25,831.62 × 10,761.64
  4. Step 4: Simplify right side
    18,718.12x = 277,990,595.06
  5. Step 5: Solve for x
    x = 277,990,595.06/18,718.12
  6. Step 6: Final answer
    x = 14,851.42

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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.