Home / 16,515.72-24,780.87-7,749.90

Finding the Fourth Proportional to 16,515.72, 24,780.87 and 7,749.90

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Solution

The fourth proportional to 16,515.72, 24,780.87 and 7,749.90 is: 11,628.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,515.72 : 24,780.87 = 7,749.90 : x
  2. Step 2: Convert to fraction form
    16,515.72/24,780.87 = 7,749.90/x
  3. Step 3: Cross multiply
    16,515.72x = 24,780.87 × 7,749.90
  4. Step 4: Simplify right side
    16,515.72x = 192,049,264.41
  5. Step 5: Solve for x
    x = 192,049,264.41/16,515.72
  6. Step 6: Final answer
    x = 11,628.27

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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.