Home / 7,699.85-11,549.67-1,856.41

Finding the Fourth Proportional to 7,699.85, 11,549.67 and 1,856.41

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Solution

The fourth proportional to 7,699.85, 11,549.67 and 1,856.41 is: 2,784.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,699.85 : 11,549.67 = 1,856.41 : x
  2. Step 2: Convert to fraction form
    7,699.85/11,549.67 = 1,856.41/x
  3. Step 3: Cross multiply
    7,699.85x = 11,549.67 × 1,856.41
  4. Step 4: Simplify right side
    7,699.85x = 21,440,922.88
  5. Step 5: Solve for x
    x = 21,440,922.88/7,699.85
  6. Step 6: Final answer
    x = 2,784.59

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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.