Home / 19,293.81-26,610.44-12,918.38

Finding the Fourth Proportional to 19,293.81, 26,610.44 and 12,918.38

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Solution

The fourth proportional to 19,293.81, 26,610.44 and 12,918.38 is: 17,817.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,293.81 : 26,610.44 = 12,918.38 : x
  2. Step 2: Convert to fraction form
    19,293.81/26,610.44 = 12,918.38/x
  3. Step 3: Cross multiply
    19,293.81x = 26,610.44 × 12,918.38
  4. Step 4: Simplify right side
    19,293.81x = 343,763,578.24
  5. Step 5: Solve for x
    x = 343,763,578.24/19,293.81
  6. Step 6: Final answer
    x = 17,817.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.