Home / 12,861.36-19,292.40-3,627.36

Finding the Fourth Proportional to 12,861.36, 19,292.40 and 3,627.36

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Solution

The fourth proportional to 12,861.36, 19,292.40 and 3,627.36 is: 5,441.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,861.36 : 19,292.40 = 3,627.36 : x
  2. Step 2: Convert to fraction form
    12,861.36/19,292.40 = 3,627.36/x
  3. Step 3: Cross multiply
    12,861.36x = 19,292.40 × 3,627.36
  4. Step 4: Simplify right side
    12,861.36x = 69,980,480.06
  5. Step 5: Solve for x
    x = 69,980,480.06/12,861.36
  6. Step 6: Final answer
    x = 5,441.14

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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.