Home / 12,788.48-19,184.55-4,021.35

Finding the Fourth Proportional to 12,788.48, 19,184.55 and 4,021.35

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Solution

The fourth proportional to 12,788.48, 19,184.55 and 4,021.35 is: 6,032.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788.48 : 19,184.55 = 4,021.35 : x
  2. Step 2: Convert to fraction form
    12,788.48/19,184.55 = 4,021.35/x
  3. Step 3: Cross multiply
    12,788.48x = 19,184.55 × 4,021.35
  4. Step 4: Simplify right side
    12,788.48x = 77,147,703.12
  5. Step 5: Solve for x
    x = 77,147,703.12/12,788.48
  6. Step 6: Final answer
    x = 6,032.59

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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.