Home / 9,636.20-14,440.80-7,665.20

Finding the Fourth Proportional to 9,636.20, 14,440.80 and 7,665.20

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Solution

The fourth proportional to 9,636.20, 14,440.80 and 7,665.20 is: 11,487.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,636.20 : 14,440.80 = 7,665.20 : x
  2. Step 2: Convert to fraction form
    9,636.20/14,440.80 = 7,665.20/x
  3. Step 3: Cross multiply
    9,636.20x = 14,440.80 × 7,665.20
  4. Step 4: Simplify right side
    9,636.20x = 110,691,620.16
  5. Step 5: Solve for x
    x = 110,691,620.16/9,636.20
  6. Step 6: Final answer
    x = 11,487.06

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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.