Home / 12,135.22-16,748.15-6,831.05

Finding the Fourth Proportional to 12,135.22, 16,748.15 and 6,831.05

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Solution

The fourth proportional to 12,135.22, 16,748.15 and 6,831.05 is: 9,427.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,135.22 : 16,748.15 = 6,831.05 : x
  2. Step 2: Convert to fraction form
    12,135.22/16,748.15 = 6,831.05/x
  3. Step 3: Cross multiply
    12,135.22x = 16,748.15 × 6,831.05
  4. Step 4: Simplify right side
    12,135.22x = 114,407,332.16
  5. Step 5: Solve for x
    x = 114,407,332.16/12,135.22
  6. Step 6: Final answer
    x = 9,427.71

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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.