Home / 12,900.36-19,317.70-8,504.48

Finding the Fourth Proportional to 12,900.36, 19,317.70 and 8,504.48

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Solution

The fourth proportional to 12,900.36, 19,317.70 and 8,504.48 is: 12,735.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,900.36 : 19,317.70 = 8,504.48 : x
  2. Step 2: Convert to fraction form
    12,900.36/19,317.70 = 8,504.48/x
  3. Step 3: Cross multiply
    12,900.36x = 19,317.70 × 8,504.48
  4. Step 4: Simplify right side
    12,900.36x = 164,286,993.30
  5. Step 5: Solve for x
    x = 164,286,993.30/12,900.36
  6. Step 6: Final answer
    x = 12,735.07

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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.