Home / 18,727.57-25,831.80-12,002.54

Finding the Fourth Proportional to 18,727.57, 25,831.80 and 12,002.54

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Solution

The fourth proportional to 18,727.57, 25,831.80 and 12,002.54 is: 16,555.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,727.57 : 25,831.80 = 12,002.54 : x
  2. Step 2: Convert to fraction form
    18,727.57/25,831.80 = 12,002.54/x
  3. Step 3: Cross multiply
    18,727.57x = 25,831.80 × 12,002.54
  4. Step 4: Simplify right side
    18,727.57x = 310,047,277.35
  5. Step 5: Solve for x
    x = 310,047,277.35/18,727.57
  6. Step 6: Final answer
    x = 16,555.66

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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.