Home / 12,651.22-17,455.28-8,173.34

Finding the Fourth Proportional to 12,651.22, 17,455.28 and 8,173.34

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Solution

The fourth proportional to 12,651.22, 17,455.28 and 8,173.34 is: 11,277.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,651.22 : 17,455.28 = 8,173.34 : x
  2. Step 2: Convert to fraction form
    12,651.22/17,455.28 = 8,173.34/x
  3. Step 3: Cross multiply
    12,651.22x = 17,455.28 × 8,173.34
  4. Step 4: Simplify right side
    12,651.22x = 142,667,938.24
  5. Step 5: Solve for x
    x = 142,667,938.24/12,651.22
  6. Step 6: Final answer
    x = 11,277.01

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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.