Home / 12,699.19-19,055.99-6,855.67

Finding the Fourth Proportional to 12,699.19, 19,055.99 and 6,855.67

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Solution

The fourth proportional to 12,699.19, 19,055.99 and 6,855.67 is: 10,287.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,699.19 : 19,055.99 = 6,855.67 : x
  2. Step 2: Convert to fraction form
    12,699.19/19,055.99 = 6,855.67/x
  3. Step 3: Cross multiply
    12,699.19x = 19,055.99 × 6,855.67
  4. Step 4: Simplify right side
    12,699.19x = 130,641,578.96
  5. Step 5: Solve for x
    x = 130,641,578.96/12,699.19
  6. Step 6: Final answer
    x = 10,287.39

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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.