Home / 12,668.20-17,486.49-8,702.44

Finding the Fourth Proportional to 12,668.20, 17,486.49 and 8,702.44

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Solution

The fourth proportional to 12,668.20, 17,486.49 and 8,702.44 is: 12,012.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,668.20 : 17,486.49 = 8,702.44 : x
  2. Step 2: Convert to fraction form
    12,668.20/17,486.49 = 8,702.44/x
  3. Step 3: Cross multiply
    12,668.20x = 17,486.49 × 8,702.44
  4. Step 4: Simplify right side
    12,668.20x = 152,175,130.04
  5. Step 5: Solve for x
    x = 152,175,130.04/12,668.20
  6. Step 6: Final answer
    x = 12,012.37

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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.