Home / 12,669.50-19,004.88-8,975.90

Finding the Fourth Proportional to 12,669.50, 19,004.88 and 8,975.90

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Solution

The fourth proportional to 12,669.50, 19,004.88 and 8,975.90 is: 13,464.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,669.50 : 19,004.88 = 8,975.90 : x
  2. Step 2: Convert to fraction form
    12,669.50/19,004.88 = 8,975.90/x
  3. Step 3: Cross multiply
    12,669.50x = 19,004.88 × 8,975.90
  4. Step 4: Simplify right side
    12,669.50x = 170,585,902.39
  5. Step 5: Solve for x
    x = 170,585,902.39/12,669.50
  6. Step 6: Final answer
    x = 13,464.30

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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.