Home / 15,147.56-20,903.70-8,858.60

Finding the Fourth Proportional to 15,147.56, 20,903.70 and 8,858.60

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Solution

The fourth proportional to 15,147.56, 20,903.70 and 8,858.60 is: 12,224.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,147.56 : 20,903.70 = 8,858.60 : x
  2. Step 2: Convert to fraction form
    15,147.56/20,903.70 = 8,858.60/x
  3. Step 3: Cross multiply
    15,147.56x = 20,903.70 × 8,858.60
  4. Step 4: Simplify right side
    15,147.56x = 185,177,516.82
  5. Step 5: Solve for x
    x = 185,177,516.82/15,147.56
  6. Step 6: Final answer
    x = 12,224.91

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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.