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Finding the Fourth Proportional to 15,779.34, 23,676.84 and 8,759.34

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Solution

The fourth proportional to 15,779.34, 23,676.84 and 8,759.34 is: 13,143.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,779.34 : 23,676.84 = 8,759.34 : x
  2. Step 2: Convert to fraction form
    15,779.34/23,676.84 = 8,759.34/x
  3. Step 3: Cross multiply
    15,779.34x = 23,676.84 × 8,759.34
  4. Step 4: Simplify right side
    15,779.34x = 207,393,491.69
  5. Step 5: Solve for x
    x = 207,393,491.69/15,779.34
  6. Step 6: Final answer
    x = 13,143.36

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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.