Home / 11,306.80-16,960.20-8,682.40

Finding the Fourth Proportional to 11,306.80, 16,960.20 and 8,682.40

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Solution

The fourth proportional to 11,306.80, 16,960.20 and 8,682.40 is: 13,023.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,306.80 : 16,960.20 = 8,682.40 : x
  2. Step 2: Convert to fraction form
    11,306.80/16,960.20 = 8,682.40/x
  3. Step 3: Cross multiply
    11,306.80x = 16,960.20 × 8,682.40
  4. Step 4: Simplify right side
    11,306.80x = 147,255,240.48
  5. Step 5: Solve for x
    x = 147,255,240.48/11,306.80
  6. Step 6: Final answer
    x = 13,023.60

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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.