Home / 12,178.86-18,267.60-3,294.06

Finding the Fourth Proportional to 12,178.86, 18,267.60 and 3,294.06

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Solution

The fourth proportional to 12,178.86, 18,267.60 and 3,294.06 is: 4,940.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178.86 : 18,267.60 = 3,294.06 : x
  2. Step 2: Convert to fraction form
    12,178.86/18,267.60 = 3,294.06/x
  3. Step 3: Cross multiply
    12,178.86x = 18,267.60 × 3,294.06
  4. Step 4: Simplify right side
    12,178.86x = 60,174,570.46
  5. Step 5: Solve for x
    x = 60,174,570.46/12,178.86
  6. Step 6: Final answer
    x = 4,940.90

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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.