Home / 12,855.64-19,290.72-5,930.14

Finding the Fourth Proportional to 12,855.64, 19,290.72 and 5,930.14

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Solution

The fourth proportional to 12,855.64, 19,290.72 and 5,930.14 is: 8,898.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,855.64 : 19,290.72 = 5,930.14 : x
  2. Step 2: Convert to fraction form
    12,855.64/19,290.72 = 5,930.14/x
  3. Step 3: Cross multiply
    12,855.64x = 19,290.72 × 5,930.14
  4. Step 4: Simplify right side
    12,855.64x = 114,396,670.30
  5. Step 5: Solve for x
    x = 114,396,670.30/12,855.64
  6. Step 6: Final answer
    x = 8,898.56

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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.