Home / 12,624.35-18,929.94-4,720.37

Finding the Fourth Proportional to 12,624.35, 18,929.94 and 4,720.37

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Solution

The fourth proportional to 12,624.35, 18,929.94 and 4,720.37 is: 7,078.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,624.35 : 18,929.94 = 4,720.37 : x
  2. Step 2: Convert to fraction form
    12,624.35/18,929.94 = 4,720.37/x
  3. Step 3: Cross multiply
    12,624.35x = 18,929.94 × 4,720.37
  4. Step 4: Simplify right side
    12,624.35x = 89,356,226.23
  5. Step 5: Solve for x
    x = 89,356,226.23/12,624.35
  6. Step 6: Final answer
    x = 7,078.09

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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.