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Finding the Fourth Proportional to 14,658.26, 21,965.72 and 8,729.06

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Solution

The fourth proportional to 14,658.26, 21,965.72 and 8,729.06 is: 13,080.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,658.26 : 21,965.72 = 8,729.06 : x
  2. Step 2: Convert to fraction form
    14,658.26/21,965.72 = 8,729.06/x
  3. Step 3: Cross multiply
    14,658.26x = 21,965.72 × 8,729.06
  4. Step 4: Simplify right side
    14,658.26x = 191,739,999.82
  5. Step 5: Solve for x
    x = 191,739,999.82/14,658.26
  6. Step 6: Final answer
    x = 13,080.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.