Home / 7,903.21-11,850.84-2,636.36

Finding the Fourth Proportional to 7,903.21, 11,850.84 and 2,636.36

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Solution

The fourth proportional to 7,903.21, 11,850.84 and 2,636.36 is: 3,953.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,903.21 : 11,850.84 = 2,636.36 : x
  2. Step 2: Convert to fraction form
    7,903.21/11,850.84 = 2,636.36/x
  3. Step 3: Cross multiply
    7,903.21x = 11,850.84 × 2,636.36
  4. Step 4: Simplify right side
    7,903.21x = 31,243,021.29
  5. Step 5: Solve for x
    x = 31,243,021.29/7,903.21
  6. Step 6: Final answer
    x = 3,953.21

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1.5x scale

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.