Home / 12,220.03-18,315.63-5,197.93

Finding the Fourth Proportional to 12,220.03, 18,315.63 and 5,197.93

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Solution

The fourth proportional to 12,220.03, 18,315.63 and 5,197.93 is: 7,790.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,220.03 : 18,315.63 = 5,197.93 : x
  2. Step 2: Convert to fraction form
    12,220.03/18,315.63 = 5,197.93/x
  3. Step 3: Cross multiply
    12,220.03x = 18,315.63 × 5,197.93
  4. Step 4: Simplify right side
    12,220.03x = 95,203,362.65
  5. Step 5: Solve for x
    x = 95,203,362.65/12,220.03
  6. Step 6: Final answer
    x = 7,790.76

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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.