Home / 12,303.99-18,458.69-3,984.84

Finding the Fourth Proportional to 12,303.99, 18,458.69 and 3,984.84

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Solution

The fourth proportional to 12,303.99, 18,458.69 and 3,984.84 is: 5,978.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,303.99 : 18,458.69 = 3,984.84 : x
  2. Step 2: Convert to fraction form
    12,303.99/18,458.69 = 3,984.84/x
  3. Step 3: Cross multiply
    12,303.99x = 18,458.69 × 3,984.84
  4. Step 4: Simplify right side
    12,303.99x = 73,554,906.34
  5. Step 5: Solve for x
    x = 73,554,906.34/12,303.99
  6. Step 6: Final answer
    x = 5,978.13

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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.