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Finding the Fourth Proportional to 15,026.58, 20,729.16 and 9,359.46

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Solution

The fourth proportional to 15,026.58, 20,729.16 and 9,359.46 is: 12,911.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,026.58 : 20,729.16 = 9,359.46 : x
  2. Step 2: Convert to fraction form
    15,026.58/20,729.16 = 9,359.46/x
  3. Step 3: Cross multiply
    15,026.58x = 20,729.16 × 9,359.46
  4. Step 4: Simplify right side
    15,026.58x = 194,013,743.85
  5. Step 5: Solve for x
    x = 194,013,743.85/15,026.58
  6. Step 6: Final answer
    x = 12,911.37

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.