Home / 13,306.08-18,364.20-8,604.12

Finding the Fourth Proportional to 13,306.08, 18,364.20 and 8,604.12

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Solution

The fourth proportional to 13,306.08, 18,364.20 and 8,604.12 is: 11,874.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306.08 : 18,364.20 = 8,604.12 : x
  2. Step 2: Convert to fraction form
    13,306.08/18,364.20 = 8,604.12/x
  3. Step 3: Cross multiply
    13,306.08x = 18,364.20 × 8,604.12
  4. Step 4: Simplify right side
    13,306.08x = 158,007,780.50
  5. Step 5: Solve for x
    x = 158,007,780.50/13,306.08
  6. Step 6: Final answer
    x = 11,874.86

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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.