Home / 12,712.38-19,076.04-5,316.27

Finding the Fourth Proportional to 12,712.38, 19,076.04 and 5,316.27

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Solution

The fourth proportional to 12,712.38, 19,076.04 and 5,316.27 is: 7,977.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,712.38 : 19,076.04 = 5,316.27 : x
  2. Step 2: Convert to fraction form
    12,712.38/19,076.04 = 5,316.27/x
  3. Step 3: Cross multiply
    12,712.38x = 19,076.04 × 5,316.27
  4. Step 4: Simplify right side
    12,712.38x = 101,413,379.17
  5. Step 5: Solve for x
    x = 101,413,379.17/12,712.38
  6. Step 6: Final answer
    x = 7,977.53

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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.