Home / 14,171.19-21,255.16-3,783.75

Finding the Fourth Proportional to 14,171.19, 21,255.16 and 3,783.75

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Solution

The fourth proportional to 14,171.19, 21,255.16 and 3,783.75 is: 5,675.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,171.19 : 21,255.16 = 3,783.75 : x
  2. Step 2: Convert to fraction form
    14,171.19/21,255.16 = 3,783.75/x
  3. Step 3: Cross multiply
    14,171.19x = 21,255.16 × 3,783.75
  4. Step 4: Simplify right side
    14,171.19x = 80,424,211.65
  5. Step 5: Solve for x
    x = 80,424,211.65/14,171.19
  6. Step 6: Final answer
    x = 5,675.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.