Home / 15,104.95-20,844.79-9,136.60

Finding the Fourth Proportional to 15,104.95, 20,844.79 and 9,136.60

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Solution

The fourth proportional to 15,104.95, 20,844.79 and 9,136.60 is: 12,608.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,104.95 : 20,844.79 = 9,136.60 : x
  2. Step 2: Convert to fraction form
    15,104.95/20,844.79 = 9,136.60/x
  3. Step 3: Cross multiply
    15,104.95x = 20,844.79 × 9,136.60
  4. Step 4: Simplify right side
    15,104.95x = 190,450,433.36
  5. Step 5: Solve for x
    x = 190,450,433.36/15,104.95
  6. Step 6: Final answer
    x = 12,608.48

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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.