Home / 12,735.20-19,103.52-3,971.36

Finding the Fourth Proportional to 12,735.20, 19,103.52 and 3,971.36

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Solution

The fourth proportional to 12,735.20, 19,103.52 and 3,971.36 is: 5,957.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,735.20 : 19,103.52 = 3,971.36 : x
  2. Step 2: Convert to fraction form
    12,735.20/19,103.52 = 3,971.36/x
  3. Step 3: Cross multiply
    12,735.20x = 19,103.52 × 3,971.36
  4. Step 4: Simplify right side
    12,735.20x = 75,866,955.19
  5. Step 5: Solve for x
    x = 75,866,955.19/12,735.20
  6. Step 6: Final answer
    x = 5,957.26

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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.