Home / 18,836.37-28,259.12-5,687.95

Finding the Fourth Proportional to 18,836.37, 28,259.12 and 5,687.95

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Solution

The fourth proportional to 18,836.37, 28,259.12 and 5,687.95 is: 8,533.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,836.37 : 28,259.12 = 5,687.95 : x
  2. Step 2: Convert to fraction form
    18,836.37/28,259.12 = 5,687.95/x
  3. Step 3: Cross multiply
    18,836.37x = 28,259.12 × 5,687.95
  4. Step 4: Simplify right side
    18,836.37x = 160,736,461.60
  5. Step 5: Solve for x
    x = 160,736,461.60/18,836.37
  6. Step 6: Final answer
    x = 8,533.30

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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.