Home / 8,155.57-12,230.35-2,817.39

Finding the Fourth Proportional to 8,155.57, 12,230.35 and 2,817.39

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Solution

The fourth proportional to 8,155.57, 12,230.35 and 2,817.39 is: 4,225.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,155.57 : 12,230.35 = 2,817.39 : x
  2. Step 2: Convert to fraction form
    8,155.57/12,230.35 = 2,817.39/x
  3. Step 3: Cross multiply
    8,155.57x = 12,230.35 × 2,817.39
  4. Step 4: Simplify right side
    8,155.57x = 34,457,660.48
  5. Step 5: Solve for x
    x = 34,457,660.48/8,155.57
  6. Step 6: Final answer
    x = 4,225.05

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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.