Home / 7,389.78-11,083.61-3,006.21

Finding the Fourth Proportional to 7,389.78, 11,083.61 and 3,006.21

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Solution

The fourth proportional to 7,389.78, 11,083.61 and 3,006.21 is: 4,508.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,389.78 : 11,083.61 = 3,006.21 : x
  2. Step 2: Convert to fraction form
    7,389.78/11,083.61 = 3,006.21/x
  3. Step 3: Cross multiply
    7,389.78x = 11,083.61 × 3,006.21
  4. Step 4: Simplify right side
    7,389.78x = 33,319,699.84
  5. Step 5: Solve for x
    x = 33,319,699.84/7,389.78
  6. Step 6: Final answer
    x = 4,508.89

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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.