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Finding the Fourth Proportional to 7,670.99, 10,628.57 and 7,504.90

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Solution

The fourth proportional to 7,670.99, 10,628.57 and 7,504.90 is: 10,398.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,670.99 : 10,628.57 = 7,504.90 : x
  2. Step 2: Convert to fraction form
    7,670.99/10,628.57 = 7,504.90/x
  3. Step 3: Cross multiply
    7,670.99x = 10,628.57 × 7,504.90
  4. Step 4: Simplify right side
    7,670.99x = 79,766,290.90
  5. Step 5: Solve for x
    x = 79,766,290.90/7,670.99
  6. Step 6: Final answer
    x = 10,398.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.