Home / 12,784.67-19,185.26-5,389.17

Finding the Fourth Proportional to 12,784.67, 19,185.26 and 5,389.17

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Solution

The fourth proportional to 12,784.67, 19,185.26 and 5,389.17 is: 8,087.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,784.67 : 19,185.26 = 5,389.17 : x
  2. Step 2: Convert to fraction form
    12,784.67/19,185.26 = 5,389.17/x
  3. Step 3: Cross multiply
    12,784.67x = 19,185.26 × 5,389.17
  4. Step 4: Simplify right side
    12,784.67x = 103,392,600.69
  5. Step 5: Solve for x
    x = 103,392,600.69/12,784.67
  6. Step 6: Final answer
    x = 8,087.23

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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.