Home / 11,167.12-16,752.30-9,213.40

Finding the Fourth Proportional to 11,167.12, 16,752.30 and 9,213.40

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Solution

The fourth proportional to 11,167.12, 16,752.30 and 9,213.40 is: 13,821.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,167.12 : 16,752.30 = 9,213.40 : x
  2. Step 2: Convert to fraction form
    11,167.12/16,752.30 = 9,213.40/x
  3. Step 3: Cross multiply
    11,167.12x = 16,752.30 × 9,213.40
  4. Step 4: Simplify right side
    11,167.12x = 154,345,640.82
  5. Step 5: Solve for x
    x = 154,345,640.82/11,167.12
  6. Step 6: Final answer
    x = 13,821.44

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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.