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Finding the Fourth Proportional to 12,701.79, 17,530.11 and 7,396.68

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Solution

The fourth proportional to 12,701.79, 17,530.11 and 7,396.68 is: 10,208.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,701.79 : 17,530.11 = 7,396.68 : x
  2. Step 2: Convert to fraction form
    12,701.79/17,530.11 = 7,396.68/x
  3. Step 3: Cross multiply
    12,701.79x = 17,530.11 × 7,396.68
  4. Step 4: Simplify right side
    12,701.79x = 129,664,614.03
  5. Step 5: Solve for x
    x = 129,664,614.03/12,701.79
  6. Step 6: Final answer
    x = 10,208.37

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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.