Home / 13,971.90-19,285.72-8,949.62

Finding the Fourth Proportional to 13,971.90, 19,285.72 and 8,949.62

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Solution

The fourth proportional to 13,971.90, 19,285.72 and 8,949.62 is: 12,353.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971.90 : 19,285.72 = 8,949.62 : x
  2. Step 2: Convert to fraction form
    13,971.90/19,285.72 = 8,949.62/x
  3. Step 3: Cross multiply
    13,971.90x = 19,285.72 × 8,949.62
  4. Step 4: Simplify right side
    13,971.90x = 172,599,865.43
  5. Step 5: Solve for x
    x = 172,599,865.43/13,971.90
  6. Step 6: Final answer
    x = 12,353.36

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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.