Home / 12,639.32-18,961.69-4,848.06

Finding the Fourth Proportional to 12,639.32, 18,961.69 and 4,848.06

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Solution

The fourth proportional to 12,639.32, 18,961.69 and 4,848.06 is: 7,273.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,639.32 : 18,961.69 = 4,848.06 : x
  2. Step 2: Convert to fraction form
    12,639.32/18,961.69 = 4,848.06/x
  3. Step 3: Cross multiply
    12,639.32x = 18,961.69 × 4,848.06
  4. Step 4: Simplify right side
    12,639.32x = 91,927,410.82
  5. Step 5: Solve for x
    x = 91,927,410.82/12,639.32
  6. Step 6: Final answer
    x = 7,273.13

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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.