Home / 10,317.70-15,479.16-4,775.03

Finding the Fourth Proportional to 10,317.70, 15,479.16 and 4,775.03

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Solution

The fourth proportional to 10,317.70, 15,479.16 and 4,775.03 is: 7,163.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,317.70 : 15,479.16 = 4,775.03 : x
  2. Step 2: Convert to fraction form
    10,317.70/15,479.16 = 4,775.03/x
  3. Step 3: Cross multiply
    10,317.70x = 15,479.16 × 4,775.03
  4. Step 4: Simplify right side
    10,317.70x = 73,913,453.37
  5. Step 5: Solve for x
    x = 73,913,453.37/10,317.70
  6. Step 6: Final answer
    x = 7,163.76

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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.