Home / 12,717.70-17,551.44-7,054.21

Finding the Fourth Proportional to 12,717.70, 17,551.44 and 7,054.21

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Solution

The fourth proportional to 12,717.70, 17,551.44 and 7,054.21 is: 9,735.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,717.70 : 17,551.44 = 7,054.21 : x
  2. Step 2: Convert to fraction form
    12,717.70/17,551.44 = 7,054.21/x
  3. Step 3: Cross multiply
    12,717.70x = 17,551.44 × 7,054.21
  4. Step 4: Simplify right side
    12,717.70x = 123,811,543.56
  5. Step 5: Solve for x
    x = 123,811,543.56/12,717.70
  6. Step 6: Final answer
    x = 9,735.37

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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.