Home / 18,840.84-28,261.38-4,800.90

Finding the Fourth Proportional to 18,840.84, 28,261.38 and 4,800.90

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Solution

The fourth proportional to 18,840.84, 28,261.38 and 4,800.90 is: 7,201.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,840.84 : 28,261.38 = 4,800.90 : x
  2. Step 2: Convert to fraction form
    18,840.84/28,261.38 = 4,800.90/x
  3. Step 3: Cross multiply
    18,840.84x = 28,261.38 × 4,800.90
  4. Step 4: Simplify right side
    18,840.84x = 135,680,059.24
  5. Step 5: Solve for x
    x = 135,680,059.24/18,840.84
  6. Step 6: Final answer
    x = 7,201.38

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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.