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Finding the Fourth Proportional to 12,862.76, 17,750.60 and 7,273.76

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Solution

The fourth proportional to 12,862.76, 17,750.60 and 7,273.76 is: 10,037.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,862.76 : 17,750.60 = 7,273.76 : x
  2. Step 2: Convert to fraction form
    12,862.76/17,750.60 = 7,273.76/x
  3. Step 3: Cross multiply
    12,862.76x = 17,750.60 × 7,273.76
  4. Step 4: Simplify right side
    12,862.76x = 129,113,604.26
  5. Step 5: Solve for x
    x = 129,113,604.26/12,862.76
  6. Step 6: Final answer
    x = 10,037.78

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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.