Home / 12,930.74-19,396.88-4,047.73

Finding the Fourth Proportional to 12,930.74, 19,396.88 and 4,047.73

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Solution

The fourth proportional to 12,930.74, 19,396.88 and 4,047.73 is: 6,071.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,930.74 : 19,396.88 = 4,047.73 : x
  2. Step 2: Convert to fraction form
    12,930.74/19,396.88 = 4,047.73/x
  3. Step 3: Cross multiply
    12,930.74x = 19,396.88 × 4,047.73
  4. Step 4: Simplify right side
    12,930.74x = 78,513,333.08
  5. Step 5: Solve for x
    x = 78,513,333.08/12,930.74
  6. Step 6: Final answer
    x = 6,071.84

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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.