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Finding the Fourth Proportional to 12,760.54, 17,610.93 and 7,457.14

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Solution

The fourth proportional to 12,760.54, 17,610.93 and 7,457.14 is: 10,291.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,760.54 : 17,610.93 = 7,457.14 : x
  2. Step 2: Convert to fraction form
    12,760.54/17,610.93 = 7,457.14/x
  3. Step 3: Cross multiply
    12,760.54x = 17,610.93 × 7,457.14
  4. Step 4: Simplify right side
    12,760.54x = 131,327,170.54
  5. Step 5: Solve for x
    x = 131,327,170.54/12,760.54
  6. Step 6: Final answer
    x = 10,291.66

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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.