Home / 12,393.21-18,585.87-4,071.30

Finding the Fourth Proportional to 12,393.21, 18,585.87 and 4,071.30

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Solution

The fourth proportional to 12,393.21, 18,585.87 and 4,071.30 is: 6,105.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,393.21 : 18,585.87 = 4,071.30 : x
  2. Step 2: Convert to fraction form
    12,393.21/18,585.87 = 4,071.30/x
  3. Step 3: Cross multiply
    12,393.21x = 18,585.87 × 4,071.30
  4. Step 4: Simplify right side
    12,393.21x = 75,668,559.60
  5. Step 5: Solve for x
    x = 75,668,559.60/12,393.21
  6. Step 6: Final answer
    x = 6,105.65

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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.