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Finding the Fourth Proportional to 12,615.81, 17,409.64 and 6,950.44

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Solution

The fourth proportional to 12,615.81, 17,409.64 and 6,950.44 is: 9,591.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,615.81 : 17,409.64 = 6,950.44 : x
  2. Step 2: Convert to fraction form
    12,615.81/17,409.64 = 6,950.44/x
  3. Step 3: Cross multiply
    12,615.81x = 17,409.64 × 6,950.44
  4. Step 4: Simplify right side
    12,615.81x = 121,004,658.24
  5. Step 5: Solve for x
    x = 121,004,658.24/12,615.81
  6. Step 6: Final answer
    x = 9,591.51

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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.