Home / 12,205.24-18,295.29-4,806.70

Finding the Fourth Proportional to 12,205.24, 18,295.29 and 4,806.70

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Solution

The fourth proportional to 12,205.24, 18,295.29 and 4,806.70 is: 7,205.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,205.24 : 18,295.29 = 4,806.70 : x
  2. Step 2: Convert to fraction form
    12,205.24/18,295.29 = 4,806.70/x
  3. Step 3: Cross multiply
    12,205.24x = 18,295.29 × 4,806.70
  4. Step 4: Simplify right side
    12,205.24x = 87,939,970.44
  5. Step 5: Solve for x
    x = 87,939,970.44/12,205.24
  6. Step 6: Final answer
    x = 7,205.10

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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.