Home / 18,511.02-27,771.21-5,364.30

Finding the Fourth Proportional to 18,511.02, 27,771.21 and 5,364.30

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Solution

The fourth proportional to 18,511.02, 27,771.21 and 5,364.30 is: 8,047.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,511.02 : 27,771.21 = 5,364.30 : x
  2. Step 2: Convert to fraction form
    18,511.02/27,771.21 = 5,364.30/x
  3. Step 3: Cross multiply
    18,511.02x = 27,771.21 × 5,364.30
  4. Step 4: Simplify right side
    18,511.02x = 148,973,101.80
  5. Step 5: Solve for x
    x = 148,973,101.80/18,511.02
  6. Step 6: Final answer
    x = 8,047.81

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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.