Home / 15,431.51-23,136.94-7,100.26

Finding the Fourth Proportional to 15,431.51, 23,136.94 and 7,100.26

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Solution

The fourth proportional to 15,431.51, 23,136.94 and 7,100.26 is: 10,645.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,431.51 : 23,136.94 = 7,100.26 : x
  2. Step 2: Convert to fraction form
    15,431.51/23,136.94 = 7,100.26/x
  3. Step 3: Cross multiply
    15,431.51x = 23,136.94 × 7,100.26
  4. Step 4: Simplify right side
    15,431.51x = 164,278,240.64
  5. Step 5: Solve for x
    x = 164,278,240.64/15,431.51
  6. Step 6: Final answer
    x = 10,645.63

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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.