Home / 13,899.75-19,181.72-7,612.23

Finding the Fourth Proportional to 13,899.75, 19,181.72 and 7,612.23

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Solution

The fourth proportional to 13,899.75, 19,181.72 and 7,612.23 is: 10,504.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,899.75 : 19,181.72 = 7,612.23 : x
  2. Step 2: Convert to fraction form
    13,899.75/19,181.72 = 7,612.23/x
  3. Step 3: Cross multiply
    13,899.75x = 19,181.72 × 7,612.23
  4. Step 4: Simplify right side
    13,899.75x = 146,015,626.37
  5. Step 5: Solve for x
    x = 146,015,626.37/13,899.75
  6. Step 6: Final answer
    x = 10,504.91

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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.