Home / 12,822.48-19,235.88-4,057.20

Finding the Fourth Proportional to 12,822.48, 19,235.88 and 4,057.20

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Solution

The fourth proportional to 12,822.48, 19,235.88 and 4,057.20 is: 6,086.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,822.48 : 19,235.88 = 4,057.20 : x
  2. Step 2: Convert to fraction form
    12,822.48/19,235.88 = 4,057.20/x
  3. Step 3: Cross multiply
    12,822.48x = 19,235.88 × 4,057.20
  4. Step 4: Simplify right side
    12,822.48x = 78,043,812.34
  5. Step 5: Solve for x
    x = 78,043,812.34/12,822.48
  6. Step 6: Final answer
    x = 6,086.48

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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.