Home / 7,415.39-10,215.73-5,173.26

Finding the Fourth Proportional to 7,415.39, 10,215.73 and 5,173.26

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Solution

The fourth proportional to 7,415.39, 10,215.73 and 5,173.26 is: 7,126.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.39 : 10,215.73 = 5,173.26 : x
  2. Step 2: Convert to fraction form
    7,415.39/10,215.73 = 5,173.26/x
  3. Step 3: Cross multiply
    7,415.39x = 10,215.73 × 5,173.26
  4. Step 4: Simplify right side
    7,415.39x = 52,848,627.38
  5. Step 5: Solve for x
    x = 52,848,627.38/7,415.39
  6. Step 6: Final answer
    x = 7,126.88

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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.