Home / 18,705.60-28,037.21-6,222.69

Finding the Fourth Proportional to 18,705.60, 28,037.21 and 6,222.69

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Solution

The fourth proportional to 18,705.60, 28,037.21 and 6,222.69 is: 9,326.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,705.60 : 28,037.21 = 6,222.69 : x
  2. Step 2: Convert to fraction form
    18,705.60/28,037.21 = 6,222.69/x
  3. Step 3: Cross multiply
    18,705.60x = 28,037.21 × 6,222.69
  4. Step 4: Simplify right side
    18,705.60x = 174,466,835.18
  5. Step 5: Solve for x
    x = 174,466,835.18/18,705.60
  6. Step 6: Final answer
    x = 9,326.98

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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.