Home / 12,261.37-18,389.85-5,245.33

Finding the Fourth Proportional to 12,261.37, 18,389.85 and 5,245.33

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Solution

The fourth proportional to 12,261.37, 18,389.85 and 5,245.33 is: 7,867.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,261.37 : 18,389.85 = 5,245.33 : x
  2. Step 2: Convert to fraction form
    12,261.37/18,389.85 = 5,245.33/x
  3. Step 3: Cross multiply
    12,261.37x = 18,389.85 × 5,245.33
  4. Step 4: Simplify right side
    12,261.37x = 96,460,831.90
  5. Step 5: Solve for x
    x = 96,460,831.90/12,261.37
  6. Step 6: Final answer
    x = 7,867.05

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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.