Home / 14,131.44-19,490.32-9,881.12

Finding the Fourth Proportional to 14,131.44, 19,490.32 and 9,881.12

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Solution

The fourth proportional to 14,131.44, 19,490.32 and 9,881.12 is: 13,628.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,131.44 : 19,490.32 = 9,881.12 : x
  2. Step 2: Convert to fraction form
    14,131.44/19,490.32 = 9,881.12/x
  3. Step 3: Cross multiply
    14,131.44x = 19,490.32 × 9,881.12
  4. Step 4: Simplify right side
    14,131.44x = 192,586,190.76
  5. Step 5: Solve for x
    x = 192,586,190.76/14,131.44
  6. Step 6: Final answer
    x = 13,628.21

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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.