Home / 12,983.45-19,478.43-3,749.45

Finding the Fourth Proportional to 12,983.45, 19,478.43 and 3,749.45

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Solution

The fourth proportional to 12,983.45, 19,478.43 and 3,749.45 is: 5,625.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,983.45 : 19,478.43 = 3,749.45 : x
  2. Step 2: Convert to fraction form
    12,983.45/19,478.43 = 3,749.45/x
  3. Step 3: Cross multiply
    12,983.45x = 19,478.43 × 3,749.45
  4. Step 4: Simplify right side
    12,983.45x = 73,033,301.97
  5. Step 5: Solve for x
    x = 73,033,301.97/12,983.45
  6. Step 6: Final answer
    x = 5,625.11

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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.