Home / 18,636.06-25,721.40-10,683.60

Finding the Fourth Proportional to 18,636.06, 25,721.40 and 10,683.60

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Solution

The fourth proportional to 18,636.06, 25,721.40 and 10,683.60 is: 14,745.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,636.06 : 25,721.40 = 10,683.60 : x
  2. Step 2: Convert to fraction form
    18,636.06/25,721.40 = 10,683.60/x
  3. Step 3: Cross multiply
    18,636.06x = 25,721.40 × 10,683.60
  4. Step 4: Simplify right side
    18,636.06x = 274,797,149.04
  5. Step 5: Solve for x
    x = 274,797,149.04/18,636.06
  6. Step 6: Final answer
    x = 14,745.45

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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.