Home / 12,013.75-18,023.33-4,621.69

Finding the Fourth Proportional to 12,013.75, 18,023.33 and 4,621.69

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Solution

The fourth proportional to 12,013.75, 18,023.33 and 4,621.69 is: 6,933.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,013.75 : 18,023.33 = 4,621.69 : x
  2. Step 2: Convert to fraction form
    12,013.75/18,023.33 = 4,621.69/x
  3. Step 3: Cross multiply
    12,013.75x = 18,023.33 × 4,621.69
  4. Step 4: Simplify right side
    12,013.75x = 83,298,244.03
  5. Step 5: Solve for x
    x = 83,298,244.03/12,013.75
  6. Step 6: Final answer
    x = 6,933.58

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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.