Home / 13,953.26-19,255.17-7,984.55

Finding the Fourth Proportional to 13,953.26, 19,255.17 and 7,984.55

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Solution

The fourth proportional to 13,953.26, 19,255.17 and 7,984.55 is: 11,018.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.26 : 19,255.17 = 7,984.55 : x
  2. Step 2: Convert to fraction form
    13,953.26/19,255.17 = 7,984.55/x
  3. Step 3: Cross multiply
    13,953.26x = 19,255.17 × 7,984.55
  4. Step 4: Simplify right side
    13,953.26x = 153,743,846.64
  5. Step 5: Solve for x
    x = 153,743,846.64/13,953.26
  6. Step 6: Final answer
    x = 11,018.49

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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.