Home / 19,102.79-28,647.69-6,619.89

Finding the Fourth Proportional to 19,102.79, 28,647.69 and 6,619.89

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Solution

The fourth proportional to 19,102.79, 28,647.69 and 6,619.89 is: 9,927.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,102.79 : 28,647.69 = 6,619.89 : x
  2. Step 2: Convert to fraction form
    19,102.79/28,647.69 = 6,619.89/x
  3. Step 3: Cross multiply
    19,102.79x = 28,647.69 × 6,619.89
  4. Step 4: Simplify right side
    19,102.79x = 189,644,676.40
  5. Step 5: Solve for x
    x = 189,644,676.40/19,102.79
  6. Step 6: Final answer
    x = 9,927.59

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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.