Home / 7,715.10-11,584.80-4,434.60

Finding the Fourth Proportional to 7,715.10, 11,584.80 and 4,434.60

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Solution

The fourth proportional to 7,715.10, 11,584.80 and 4,434.60 is: 6,658.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.10 : 11,584.80 = 4,434.60 : x
  2. Step 2: Convert to fraction form
    7,715.10/11,584.80 = 4,434.60/x
  3. Step 3: Cross multiply
    7,715.10x = 11,584.80 × 4,434.60
  4. Step 4: Simplify right side
    7,715.10x = 51,373,954.08
  5. Step 5: Solve for x
    x = 51,373,954.08/7,715.10
  6. Step 6: Final answer
    x = 6,658.88

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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.