Home / 12,208.76-18,313.14-4,415.75

Finding the Fourth Proportional to 12,208.76, 18,313.14 and 4,415.75

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Solution

The fourth proportional to 12,208.76, 18,313.14 and 4,415.75 is: 6,623.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208.76 : 18,313.14 = 4,415.75 : x
  2. Step 2: Convert to fraction form
    12,208.76/18,313.14 = 4,415.75/x
  3. Step 3: Cross multiply
    12,208.76x = 18,313.14 × 4,415.75
  4. Step 4: Simplify right side
    12,208.76x = 80,866,247.96
  5. Step 5: Solve for x
    x = 80,866,247.96/12,208.76
  6. Step 6: Final answer
    x = 6,623.63

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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.