Home / 12,171.08-18,259.84-3,851.24

Finding the Fourth Proportional to 12,171.08, 18,259.84 and 3,851.24

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Solution

The fourth proportional to 12,171.08, 18,259.84 and 3,851.24 is: 5,777.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,171.08 : 18,259.84 = 3,851.24 : x
  2. Step 2: Convert to fraction form
    12,171.08/18,259.84 = 3,851.24/x
  3. Step 3: Cross multiply
    12,171.08x = 18,259.84 × 3,851.24
  4. Step 4: Simplify right side
    12,171.08x = 70,323,026.20
  5. Step 5: Solve for x
    x = 70,323,026.20/12,171.08
  6. Step 6: Final answer
    x = 5,777.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.