Home / 13,981.48-19,295.06-8,949.96

Finding the Fourth Proportional to 13,981.48, 19,295.06 and 8,949.96

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Solution

The fourth proportional to 13,981.48, 19,295.06 and 8,949.96 is: 12,351.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,981.48 : 19,295.06 = 8,949.96 : x
  2. Step 2: Convert to fraction form
    13,981.48/19,295.06 = 8,949.96/x
  3. Step 3: Cross multiply
    13,981.48x = 19,295.06 × 8,949.96
  4. Step 4: Simplify right side
    13,981.48x = 172,690,015.20
  5. Step 5: Solve for x
    x = 172,690,015.20/13,981.48
  6. Step 6: Final answer
    x = 12,351.34

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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.