Home / 12,303.74-18,458.29-3,984.59

Finding the Fourth Proportional to 12,303.74, 18,458.29 and 3,984.59

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Solution

The fourth proportional to 12,303.74, 18,458.29 and 3,984.59 is: 5,977.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,303.74 : 18,458.29 = 3,984.59 : x
  2. Step 2: Convert to fraction form
    12,303.74/18,458.29 = 3,984.59/x
  3. Step 3: Cross multiply
    12,303.74x = 18,458.29 × 3,984.59
  4. Step 4: Simplify right side
    12,303.74x = 73,548,717.75
  5. Step 5: Solve for x
    x = 73,548,717.75/12,303.74
  6. Step 6: Final answer
    x = 5,977.75

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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.