Home / 13,103.49-18,082.44-7,438.76

Finding the Fourth Proportional to 13,103.49, 18,082.44 and 7,438.76

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Solution

The fourth proportional to 13,103.49, 18,082.44 and 7,438.76 is: 10,265.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,103.49 : 18,082.44 = 7,438.76 : x
  2. Step 2: Convert to fraction form
    13,103.49/18,082.44 = 7,438.76/x
  3. Step 3: Cross multiply
    13,103.49x = 18,082.44 × 7,438.76
  4. Step 4: Simplify right side
    13,103.49x = 134,510,840.96
  5. Step 5: Solve for x
    x = 134,510,840.96/13,103.49
  6. Step 6: Final answer
    x = 10,265.27

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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.