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Finding the Fourth Proportional to 12,860.46, 17,749.14 and 7,197.37

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Solution

The fourth proportional to 12,860.46, 17,749.14 and 7,197.37 is: 9,933.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,860.46 : 17,749.14 = 7,197.37 : x
  2. Step 2: Convert to fraction form
    12,860.46/17,749.14 = 7,197.37/x
  3. Step 3: Cross multiply
    12,860.46x = 17,749.14 × 7,197.37
  4. Step 4: Simplify right side
    12,860.46x = 127,747,127.76
  5. Step 5: Solve for x
    x = 127,747,127.76/12,860.46
  6. Step 6: Final answer
    x = 9,933.32

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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.