Home / 12,788.73-19,156.37-10,310.13

Finding the Fourth Proportional to 12,788.73, 19,156.37 and 10,310.13

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Solution

The fourth proportional to 12,788.73, 19,156.37 and 10,310.13 is: 15,443.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788.73 : 19,156.37 = 10,310.13 : x
  2. Step 2: Convert to fraction form
    12,788.73/19,156.37 = 10,310.13/x
  3. Step 3: Cross multiply
    12,788.73x = 19,156.37 × 10,310.13
  4. Step 4: Simplify right side
    12,788.73x = 197,504,613.48
  5. Step 5: Solve for x
    x = 197,504,613.48/12,788.73
  6. Step 6: Final answer
    x = 15,443.65

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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.