Home / 12,795.39-19,187.28-5,395.82

Finding the Fourth Proportional to 12,795.39, 19,187.28 and 5,395.82

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Solution

The fourth proportional to 12,795.39, 19,187.28 and 5,395.82 is: 8,091.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,795.39 : 19,187.28 = 5,395.82 : x
  2. Step 2: Convert to fraction form
    12,795.39/19,187.28 = 5,395.82/x
  3. Step 3: Cross multiply
    12,795.39x = 19,187.28 × 5,395.82
  4. Step 4: Simplify right side
    12,795.39x = 103,531,013.23
  5. Step 5: Solve for x
    x = 103,531,013.23/12,795.39
  6. Step 6: Final answer
    x = 8,091.27

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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.