Home / 12,597.12-18,895.36-3,831.68

Finding the Fourth Proportional to 12,597.12, 18,895.36 and 3,831.68

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Solution

The fourth proportional to 12,597.12, 18,895.36 and 3,831.68 is: 5,747.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,597.12 : 18,895.36 = 3,831.68 : x
  2. Step 2: Convert to fraction form
    12,597.12/18,895.36 = 3,831.68/x
  3. Step 3: Cross multiply
    12,597.12x = 18,895.36 × 3,831.68
  4. Step 4: Simplify right side
    12,597.12x = 72,400,973.00
  5. Step 5: Solve for x
    x = 72,400,973.00/12,597.12
  6. Step 6: Final answer
    x = 5,747.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.