Home / 11,428.98-17,145.09-5,590.50

Finding the Fourth Proportional to 11,428.98, 17,145.09 and 5,590.50

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Solution

The fourth proportional to 11,428.98, 17,145.09 and 5,590.50 is: 8,386.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,428.98 : 17,145.09 = 5,590.50 : x
  2. Step 2: Convert to fraction form
    11,428.98/17,145.09 = 5,590.50/x
  3. Step 3: Cross multiply
    11,428.98x = 17,145.09 × 5,590.50
  4. Step 4: Simplify right side
    11,428.98x = 95,849,625.65
  5. Step 5: Solve for x
    x = 95,849,625.65/11,428.98
  6. Step 6: Final answer
    x = 8,386.54

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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.