Home / 13,276.90-19,794.97-12,930.62

Finding the Fourth Proportional to 13,276.90, 19,794.97 and 12,930.62

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Solution

The fourth proportional to 13,276.90, 19,794.97 and 12,930.62 is: 19,278.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,276.90 : 19,794.97 = 12,930.62 : x
  2. Step 2: Convert to fraction form
    13,276.90/19,794.97 = 12,930.62/x
  3. Step 3: Cross multiply
    13,276.90x = 19,794.97 × 12,930.62
  4. Step 4: Simplify right side
    13,276.90x = 255,961,252.14
  5. Step 5: Solve for x
    x = 255,961,252.14/13,276.90
  6. Step 6: Final answer
    x = 19,278.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.