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Finding the Fourth Proportional to 15,329, 23,014.52 and 7,938.56

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Solution

The fourth proportional to 15,329, 23,014.52 and 7,938.56 is: 11,918.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,329 : 23,014.52 = 7,938.56 : x
  2. Step 2: Convert to fraction form
    15,329/23,014.52 = 7,938.56/x
  3. Step 3: Cross multiply
    15,329x = 23,014.52 × 7,938.56
  4. Step 4: Simplify right side
    15,329x = 182,702,147.89
  5. Step 5: Solve for x
    x = 182,702,147.89/15,329
  6. Step 6: Final answer
    x = 11,918.73

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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.