Home / 13,412.45-18,504.89-7,746.44

Finding the Fourth Proportional to 13,412.45, 18,504.89 and 7,746.44

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Solution

The fourth proportional to 13,412.45, 18,504.89 and 7,746.44 is: 10,687.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,412.45 : 18,504.89 = 7,746.44 : x
  2. Step 2: Convert to fraction form
    13,412.45/18,504.89 = 7,746.44/x
  3. Step 3: Cross multiply
    13,412.45x = 18,504.89 × 7,746.44
  4. Step 4: Simplify right side
    13,412.45x = 143,347,027.62
  5. Step 5: Solve for x
    x = 143,347,027.62/13,412.45
  6. Step 6: Final answer
    x = 10,687.61

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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.