Home / 10,104.80-13,945.65-5,629.28

Finding the Fourth Proportional to 10,104.80, 13,945.65 and 5,629.28

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Solution

The fourth proportional to 10,104.80, 13,945.65 and 5,629.28 is: 7,768.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,104.80 : 13,945.65 = 5,629.28 : x
  2. Step 2: Convert to fraction form
    10,104.80/13,945.65 = 5,629.28/x
  3. Step 3: Cross multiply
    10,104.80x = 13,945.65 × 5,629.28
  4. Step 4: Simplify right side
    10,104.80x = 78,503,968.63
  5. Step 5: Solve for x
    x = 78,503,968.63/10,104.80
  6. Step 6: Final answer
    x = 7,768.98

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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.