Home / 12,655.45-18,987.02-5,997.05

Finding the Fourth Proportional to 12,655.45, 18,987.02 and 5,997.05

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Solution

The fourth proportional to 12,655.45, 18,987.02 and 5,997.05 is: 8,997.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,655.45 : 18,987.02 = 5,997.05 : x
  2. Step 2: Convert to fraction form
    12,655.45/18,987.02 = 5,997.05/x
  3. Step 3: Cross multiply
    12,655.45x = 18,987.02 × 5,997.05
  4. Step 4: Simplify right side
    12,655.45x = 113,866,028.35
  5. Step 5: Solve for x
    x = 113,866,028.35/12,655.45
  6. Step 6: Final answer
    x = 8,997.39

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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.