Home / 12,029.78-18,047.41-5,457.85

Finding the Fourth Proportional to 12,029.78, 18,047.41 and 5,457.85

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Solution

The fourth proportional to 12,029.78, 18,047.41 and 5,457.85 is: 8,188.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,029.78 : 18,047.41 = 5,457.85 : x
  2. Step 2: Convert to fraction form
    12,029.78/18,047.41 = 5,457.85/x
  3. Step 3: Cross multiply
    12,029.78x = 18,047.41 × 5,457.85
  4. Step 4: Simplify right side
    12,029.78x = 98,499,997.91
  5. Step 5: Solve for x
    x = 98,499,997.91/12,029.78
  6. Step 6: Final answer
    x = 8,188.01

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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.