Home / 12,563.22-17,321.40-8,921.46

Finding the Fourth Proportional to 12,563.22, 17,321.40 and 8,921.46

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Solution

The fourth proportional to 12,563.22, 17,321.40 and 8,921.46 is: 12,300.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,563.22 : 17,321.40 = 8,921.46 : x
  2. Step 2: Convert to fraction form
    12,563.22/17,321.40 = 8,921.46/x
  3. Step 3: Cross multiply
    12,563.22x = 17,321.40 × 8,921.46
  4. Step 4: Simplify right side
    12,563.22x = 154,532,177.24
  5. Step 5: Solve for x
    x = 154,532,177.24/12,563.22
  6. Step 6: Final answer
    x = 12,300.36

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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.