Home / 12,017.18-18,028.75-4,995.09

Finding the Fourth Proportional to 12,017.18, 18,028.75 and 4,995.09

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Solution

The fourth proportional to 12,017.18, 18,028.75 and 4,995.09 is: 7,493.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,017.18 : 18,028.75 = 4,995.09 : x
  2. Step 2: Convert to fraction form
    12,017.18/18,028.75 = 4,995.09/x
  3. Step 3: Cross multiply
    12,017.18x = 18,028.75 × 4,995.09
  4. Step 4: Simplify right side
    12,017.18x = 90,055,216.35
  5. Step 5: Solve for x
    x = 90,055,216.35/12,017.18
  6. Step 6: Final answer
    x = 7,493.87

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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.