Home / 13,118.60-19,678.51-3,760

Finding the Fourth Proportional to 13,118.60, 19,678.51 and 3,760

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Solution

The fourth proportional to 13,118.60, 19,678.51 and 3,760 is: 5,640.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,118.60 : 19,678.51 = 3,760 : x
  2. Step 2: Convert to fraction form
    13,118.60/19,678.51 = 3,760/x
  3. Step 3: Cross multiply
    13,118.60x = 19,678.51 × 3,760
  4. Step 4: Simplify right side
    13,118.60x = 73,991,197.60
  5. Step 5: Solve for x
    x = 73,991,197.60/13,118.60
  6. Step 6: Final answer
    x = 5,640.17

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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.