Home / 12,300.05-18,450.99-3,535.65

Finding the Fourth Proportional to 12,300.05, 18,450.99 and 3,535.65

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Solution

The fourth proportional to 12,300.05, 18,450.99 and 3,535.65 is: 5,303.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,300.05 : 18,450.99 = 3,535.65 : x
  2. Step 2: Convert to fraction form
    12,300.05/18,450.99 = 3,535.65/x
  3. Step 3: Cross multiply
    12,300.05x = 18,450.99 × 3,535.65
  4. Step 4: Simplify right side
    12,300.05x = 65,236,242.79
  5. Step 5: Solve for x
    x = 65,236,242.79/12,300.05
  6. Step 6: Final answer
    x = 5,303.74

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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.