Home / 7,715.39-11,564.37-4,795.74

Finding the Fourth Proportional to 7,715.39, 11,564.37 and 4,795.74

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Solution

The fourth proportional to 7,715.39, 11,564.37 and 4,795.74 is: 7,188.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.39 : 11,564.37 = 4,795.74 : x
  2. Step 2: Convert to fraction form
    7,715.39/11,564.37 = 4,795.74/x
  3. Step 3: Cross multiply
    7,715.39x = 11,564.37 × 4,795.74
  4. Step 4: Simplify right side
    7,715.39x = 55,459,711.78
  5. Step 5: Solve for x
    x = 55,459,711.78/7,715.39
  6. Step 6: Final answer
    x = 7,188.20

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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.