Home / 12,968.95-19,456.51-4,203.87

Finding the Fourth Proportional to 12,968.95, 19,456.51 and 4,203.87

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Solution

The fourth proportional to 12,968.95, 19,456.51 and 4,203.87 is: 6,306.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,968.95 : 19,456.51 = 4,203.87 : x
  2. Step 2: Convert to fraction form
    12,968.95/19,456.51 = 4,203.87/x
  3. Step 3: Cross multiply
    12,968.95x = 19,456.51 × 4,203.87
  4. Step 4: Simplify right side
    12,968.95x = 81,792,638.69
  5. Step 5: Solve for x
    x = 81,792,638.69/12,968.95
  6. Step 6: Final answer
    x = 6,306.80

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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.