Home / 13,188.23-19,782.36-3,954.23

Finding the Fourth Proportional to 13,188.23, 19,782.36 and 3,954.23

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Solution

The fourth proportional to 13,188.23, 19,782.36 and 3,954.23 is: 5,931.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188.23 : 19,782.36 = 3,954.23 : x
  2. Step 2: Convert to fraction form
    13,188.23/19,782.36 = 3,954.23/x
  3. Step 3: Cross multiply
    13,188.23x = 19,782.36 × 3,954.23
  4. Step 4: Simplify right side
    13,188.23x = 78,224,087.93
  5. Step 5: Solve for x
    x = 78,224,087.93/13,188.23
  6. Step 6: Final answer
    x = 5,931.35

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Double scale
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Similar ratio
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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.