Home / 10,684.21-14,729.39-9,207.85

Finding the Fourth Proportional to 10,684.21, 14,729.39 and 9,207.85

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Solution

The fourth proportional to 10,684.21, 14,729.39 and 9,207.85 is: 12,694.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,684.21 : 14,729.39 = 9,207.85 : x
  2. Step 2: Convert to fraction form
    10,684.21/14,729.39 = 9,207.85/x
  3. Step 3: Cross multiply
    10,684.21x = 14,729.39 × 9,207.85
  4. Step 4: Simplify right side
    10,684.21x = 135,625,967.67
  5. Step 5: Solve for x
    x = 135,625,967.67/10,684.21
  6. Step 6: Final answer
    x = 12,694.06

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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.