Home / 13,980.09-19,292.53-7,692.47

Finding the Fourth Proportional to 13,980.09, 19,292.53 and 7,692.47

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Solution

The fourth proportional to 13,980.09, 19,292.53 and 7,692.47 is: 10,615.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,980.09 : 19,292.53 = 7,692.47 : x
  2. Step 2: Convert to fraction form
    13,980.09/19,292.53 = 7,692.47/x
  3. Step 3: Cross multiply
    13,980.09x = 19,292.53 × 7,692.47
  4. Step 4: Simplify right side
    13,980.09x = 148,407,179.33
  5. Step 5: Solve for x
    x = 148,407,179.33/13,980.09
  6. Step 6: Final answer
    x = 10,615.61

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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.