Home / 7,140.33-9,853.65-3,996.51

Finding the Fourth Proportional to 7,140.33, 9,853.65 and 3,996.51

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Solution

The fourth proportional to 7,140.33, 9,853.65 and 3,996.51 is: 5,515.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.33 : 9,853.65 = 3,996.51 : x
  2. Step 2: Convert to fraction form
    7,140.33/9,853.65 = 3,996.51/x
  3. Step 3: Cross multiply
    7,140.33x = 9,853.65 × 3,996.51
  4. Step 4: Simplify right side
    7,140.33x = 39,380,237.72
  5. Step 5: Solve for x
    x = 39,380,237.72/7,140.33
  6. Step 6: Final answer
    x = 5,515.19

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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.