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Finding the Fourth Proportional to 13,037.42, 17,989.92 and 7,372.94

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Solution

The fourth proportional to 13,037.42, 17,989.92 and 7,372.94 is: 10,173.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,037.42 : 17,989.92 = 7,372.94 : x
  2. Step 2: Convert to fraction form
    13,037.42/17,989.92 = 7,372.94/x
  3. Step 3: Cross multiply
    13,037.42x = 17,989.92 × 7,372.94
  4. Step 4: Simplify right side
    13,037.42x = 132,638,600.76
  5. Step 5: Solve for x
    x = 132,638,600.76/13,037.42
  6. Step 6: Final answer
    x = 10,173.68

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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.