Home / 12,788.48-19,184.55-4,020.44

Finding the Fourth Proportional to 12,788.48, 19,184.55 and 4,020.44

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Solution

The fourth proportional to 12,788.48, 19,184.55 and 4,020.44 is: 6,031.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788.48 : 19,184.55 = 4,020.44 : x
  2. Step 2: Convert to fraction form
    12,788.48/19,184.55 = 4,020.44/x
  3. Step 3: Cross multiply
    12,788.48x = 19,184.55 × 4,020.44
  4. Step 4: Simplify right side
    12,788.48x = 77,130,221.20
  5. Step 5: Solve for x
    x = 77,130,221.20/12,788.48
  6. Step 6: Final answer
    x = 6,031.23

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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.