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Finding the Fourth Proportional to 9,012.87, 13,514.90 and 3,168.63

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Solution

The fourth proportional to 9,012.87, 13,514.90 and 3,168.63 is: 4,751.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,012.87 : 13,514.90 = 3,168.63 : x
  2. Step 2: Convert to fraction form
    9,012.87/13,514.90 = 3,168.63/x
  3. Step 3: Cross multiply
    9,012.87x = 13,514.90 × 3,168.63
  4. Step 4: Simplify right side
    9,012.87x = 42,823,701.74
  5. Step 5: Solve for x
    x = 42,823,701.74/9,012.87
  6. Step 6: Final answer
    x = 4,751.39

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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.