Home / 10,157.44-15,241.66-7,691.68

Finding the Fourth Proportional to 10,157.44, 15,241.66 and 7,691.68

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Solution

The fourth proportional to 10,157.44, 15,241.66 and 7,691.68 is: 11,541.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,157.44 : 15,241.66 = 7,691.68 : x
  2. Step 2: Convert to fraction form
    10,157.44/15,241.66 = 7,691.68/x
  3. Step 3: Cross multiply
    10,157.44x = 15,241.66 × 7,691.68
  4. Step 4: Simplify right side
    10,157.44x = 117,233,971.39
  5. Step 5: Solve for x
    x = 117,233,971.39/10,157.44
  6. Step 6: Final answer
    x = 11,541.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.