Home / 12,998.83-19,501.50-7,458.43

Finding the Fourth Proportional to 12,998.83, 19,501.50 and 7,458.43

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Solution

The fourth proportional to 12,998.83, 19,501.50 and 7,458.43 is: 11,189.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,998.83 : 19,501.50 = 7,458.43 : x
  2. Step 2: Convert to fraction form
    12,998.83/19,501.50 = 7,458.43/x
  3. Step 3: Cross multiply
    12,998.83x = 19,501.50 × 7,458.43
  4. Step 4: Simplify right side
    12,998.83x = 145,450,572.65
  5. Step 5: Solve for x
    x = 145,450,572.65/12,998.83
  6. Step 6: Final answer
    x = 11,189.51

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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.