Home / 12,639.54-18,962.10-4,848.36

Finding the Fourth Proportional to 12,639.54, 18,962.10 and 4,848.36

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Solution

The fourth proportional to 12,639.54, 18,962.10 and 4,848.36 is: 7,273.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,639.54 : 18,962.10 = 4,848.36 : x
  2. Step 2: Convert to fraction form
    12,639.54/18,962.10 = 4,848.36/x
  3. Step 3: Cross multiply
    12,639.54x = 18,962.10 × 4,848.36
  4. Step 4: Simplify right side
    12,639.54x = 91,935,087.16
  5. Step 5: Solve for x
    x = 91,935,087.16/12,639.54
  6. Step 6: Final answer
    x = 7,273.61

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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.