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Finding the Fourth Proportional to 7,799.09, 10,763.08 and 4,812.62

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Solution

The fourth proportional to 7,799.09, 10,763.08 and 4,812.62 is: 6,641.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,799.09 : 10,763.08 = 4,812.62 : x
  2. Step 2: Convert to fraction form
    7,799.09/10,763.08 = 4,812.62/x
  3. Step 3: Cross multiply
    7,799.09x = 10,763.08 × 4,812.62
  4. Step 4: Simplify right side
    7,799.09x = 51,798,548.22
  5. Step 5: Solve for x
    x = 51,798,548.22/7,799.09
  6. Step 6: Final answer
    x = 6,641.62

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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.