Home / 12,822.30-19,233.45-5,424.30

Finding the Fourth Proportional to 12,822.30, 19,233.45 and 5,424.30

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Solution

The fourth proportional to 12,822.30, 19,233.45 and 5,424.30 is: 8,136.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,822.30 : 19,233.45 = 5,424.30 : x
  2. Step 2: Convert to fraction form
    12,822.30/19,233.45 = 5,424.30/x
  3. Step 3: Cross multiply
    12,822.30x = 19,233.45 × 5,424.30
  4. Step 4: Simplify right side
    12,822.30x = 104,328,002.84
  5. Step 5: Solve for x
    x = 104,328,002.84/12,822.30
  6. Step 6: Final answer
    x = 8,136.45

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1.5x scale

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.