Home / 13,905.03-19,179.57-8,602.47

Finding the Fourth Proportional to 13,905.03, 19,179.57 and 8,602.47

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Solution

The fourth proportional to 13,905.03, 19,179.57 and 8,602.47 is: 11,865.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.03 : 19,179.57 = 8,602.47 : x
  2. Step 2: Convert to fraction form
    13,905.03/19,179.57 = 8,602.47/x
  3. Step 3: Cross multiply
    13,905.03x = 19,179.57 × 8,602.47
  4. Step 4: Simplify right side
    13,905.03x = 164,991,675.54
  5. Step 5: Solve for x
    x = 164,991,675.54/13,905.03
  6. Step 6: Final answer
    x = 11,865.61

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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.