Home / 12,705.36-19,059.08-3,345.36

Finding the Fourth Proportional to 12,705.36, 19,059.08 and 3,345.36

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Solution

The fourth proportional to 12,705.36, 19,059.08 and 3,345.36 is: 5,018.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,705.36 : 19,059.08 = 3,345.36 : x
  2. Step 2: Convert to fraction form
    12,705.36/19,059.08 = 3,345.36/x
  3. Step 3: Cross multiply
    12,705.36x = 19,059.08 × 3,345.36
  4. Step 4: Simplify right side
    12,705.36x = 63,759,483.87
  5. Step 5: Solve for x
    x = 63,759,483.87/12,705.36
  6. Step 6: Final answer
    x = 5,018.31

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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.