Home / 12,135.18-16,748.16-6,831.03

Finding the Fourth Proportional to 12,135.18, 16,748.16 and 6,831.03

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Solution

The fourth proportional to 12,135.18, 16,748.16 and 6,831.03 is: 9,427.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,135.18 : 16,748.16 = 6,831.03 : x
  2. Step 2: Convert to fraction form
    12,135.18/16,748.16 = 6,831.03/x
  3. Step 3: Cross multiply
    12,135.18x = 16,748.16 × 6,831.03
  4. Step 4: Simplify right side
    12,135.18x = 114,407,183.40
  5. Step 5: Solve for x
    x = 114,407,183.40/12,135.18
  6. Step 6: Final answer
    x = 9,427.73

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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.