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Finding the Fourth Proportional to 9,436.80, 14,147.10 and 4,819.80

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Solution

The fourth proportional to 9,436.80, 14,147.10 and 4,819.80 is: 7,225.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,436.80 : 14,147.10 = 4,819.80 : x
  2. Step 2: Convert to fraction form
    9,436.80/14,147.10 = 4,819.80/x
  3. Step 3: Cross multiply
    9,436.80x = 14,147.10 × 4,819.80
  4. Step 4: Simplify right side
    9,436.80x = 68,186,192.58
  5. Step 5: Solve for x
    x = 68,186,192.58/9,436.80
  6. Step 6: Final answer
    x = 7,225.56

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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.