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Finding the Fourth Proportional to 7,763.70, 11,643.62 and 3,599.72

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Solution

The fourth proportional to 7,763.70, 11,643.62 and 3,599.72 is: 5,398.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,763.70 : 11,643.62 = 3,599.72 : x
  2. Step 2: Convert to fraction form
    7,763.70/11,643.62 = 3,599.72/x
  3. Step 3: Cross multiply
    7,763.70x = 11,643.62 × 3,599.72
  4. Step 4: Simplify right side
    7,763.70x = 41,913,695.57
  5. Step 5: Solve for x
    x = 41,913,695.57/7,763.70
  6. Step 6: Final answer
    x = 5,398.68

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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.