Home / 12,929.93-19,383.78-4,495.33

Finding the Fourth Proportional to 12,929.93, 19,383.78 and 4,495.33

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Solution

The fourth proportional to 12,929.93, 19,383.78 and 4,495.33 is: 6,739.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,929.93 : 19,383.78 = 4,495.33 : x
  2. Step 2: Convert to fraction form
    12,929.93/19,383.78 = 4,495.33/x
  3. Step 3: Cross multiply
    12,929.93x = 19,383.78 × 4,495.33
  4. Step 4: Simplify right side
    12,929.93x = 87,136,516.19
  5. Step 5: Solve for x
    x = 87,136,516.19/12,929.93
  6. Step 6: Final answer
    x = 6,739.13

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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.