Home / 15,941.22-21,983.64-12,157.68

Finding the Fourth Proportional to 15,941.22, 21,983.64 and 12,157.68

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Solution

The fourth proportional to 15,941.22, 21,983.64 and 12,157.68 is: 16,765.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,941.22 : 21,983.64 = 12,157.68 : x
  2. Step 2: Convert to fraction form
    15,941.22/21,983.64 = 12,157.68/x
  3. Step 3: Cross multiply
    15,941.22x = 21,983.64 × 12,157.68
  4. Step 4: Simplify right side
    15,941.22x = 267,270,060.36
  5. Step 5: Solve for x
    x = 267,270,060.36/15,941.22
  6. Step 6: Final answer
    x = 16,765.97

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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.