Home / 12,788.58-19,176.33-5,857.14

Finding the Fourth Proportional to 12,788.58, 19,176.33 and 5,857.14

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Solution

The fourth proportional to 12,788.58, 19,176.33 and 5,857.14 is: 8,782.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788.58 : 19,176.33 = 5,857.14 : x
  2. Step 2: Convert to fraction form
    12,788.58/19,176.33 = 5,857.14/x
  3. Step 3: Cross multiply
    12,788.58x = 19,176.33 × 5,857.14
  4. Step 4: Simplify right side
    12,788.58x = 112,318,449.50
  5. Step 5: Solve for x
    x = 112,318,449.50/12,788.58
  6. Step 6: Final answer
    x = 8,782.71

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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.