Home / 7,689.63-11,538.09-4,575.79

Finding the Fourth Proportional to 7,689.63, 11,538.09 and 4,575.79

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Solution

The fourth proportional to 7,689.63, 11,538.09 and 4,575.79 is: 6,865.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,689.63 : 11,538.09 = 4,575.79 : x
  2. Step 2: Convert to fraction form
    7,689.63/11,538.09 = 4,575.79/x
  3. Step 3: Cross multiply
    7,689.63x = 11,538.09 × 4,575.79
  4. Step 4: Simplify right side
    7,689.63x = 52,795,876.84
  5. Step 5: Solve for x
    x = 52,795,876.84/7,689.63
  6. Step 6: Final answer
    x = 6,865.85

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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.