Home / 12,379.56-18,569.88-4,059.60

Finding the Fourth Proportional to 12,379.56, 18,569.88 and 4,059.60

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Solution

The fourth proportional to 12,379.56, 18,569.88 and 4,059.60 is: 6,089.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379.56 : 18,569.88 = 4,059.60 : x
  2. Step 2: Convert to fraction form
    12,379.56/18,569.88 = 4,059.60/x
  3. Step 3: Cross multiply
    12,379.56x = 18,569.88 × 4,059.60
  4. Step 4: Simplify right side
    12,379.56x = 75,386,284.85
  5. Step 5: Solve for x
    x = 75,386,284.85/12,379.56
  6. Step 6: Final answer
    x = 6,089.58

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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.