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Finding the Fourth Proportional to 12,729.99, 17,566.53 and 7,064.37

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Solution

The fourth proportional to 12,729.99, 17,566.53 and 7,064.37 is: 9,748.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,729.99 : 17,566.53 = 7,064.37 : x
  2. Step 2: Convert to fraction form
    12,729.99/17,566.53 = 7,064.37/x
  3. Step 3: Cross multiply
    12,729.99x = 17,566.53 × 7,064.37
  4. Step 4: Simplify right side
    12,729.99x = 124,096,467.54
  5. Step 5: Solve for x
    x = 124,096,467.54/12,729.99
  6. Step 6: Final answer
    x = 9,748.36

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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.