Home / 10,968.82-15,138.21-7,610.74

Finding the Fourth Proportional to 10,968.82, 15,138.21 and 7,610.74

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Solution

The fourth proportional to 10,968.82, 15,138.21 and 7,610.74 is: 10,503.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,968.82 : 15,138.21 = 7,610.74 : x
  2. Step 2: Convert to fraction form
    10,968.82/15,138.21 = 7,610.74/x
  3. Step 3: Cross multiply
    10,968.82x = 15,138.21 × 7,610.74
  4. Step 4: Simplify right side
    10,968.82x = 115,212,980.38
  5. Step 5: Solve for x
    x = 115,212,980.38/10,968.82
  6. Step 6: Final answer
    x = 10,503.68

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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.