Home / 12,555.98-18,834.65-3,790.67

Finding the Fourth Proportional to 12,555.98, 18,834.65 and 3,790.67

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Solution

The fourth proportional to 12,555.98, 18,834.65 and 3,790.67 is: 5,686.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,555.98 : 18,834.65 = 3,790.67 : x
  2. Step 2: Convert to fraction form
    12,555.98/18,834.65 = 3,790.67/x
  3. Step 3: Cross multiply
    12,555.98x = 18,834.65 × 3,790.67
  4. Step 4: Simplify right side
    12,555.98x = 71,395,942.72
  5. Step 5: Solve for x
    x = 71,395,942.72/12,555.98
  6. Step 6: Final answer
    x = 5,686.21

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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.