Home / 13,887.03-19,162.91-7,836.94

Finding the Fourth Proportional to 13,887.03, 19,162.91 and 7,836.94

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Solution

The fourth proportional to 13,887.03, 19,162.91 and 7,836.94 is: 10,814.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,887.03 : 19,162.91 = 7,836.94 : x
  2. Step 2: Convert to fraction form
    13,887.03/19,162.91 = 7,836.94/x
  3. Step 3: Cross multiply
    13,887.03x = 19,162.91 × 7,836.94
  4. Step 4: Simplify right side
    13,887.03x = 150,178,619.44
  5. Step 5: Solve for x
    x = 150,178,619.44/13,887.03
  6. Step 6: Final answer
    x = 10,814.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.