Home / 13,748.73-18,972.93-8,082.37

Finding the Fourth Proportional to 13,748.73, 18,972.93 and 8,082.37

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Solution

The fourth proportional to 13,748.73, 18,972.93 and 8,082.37 is: 11,153.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,748.73 : 18,972.93 = 8,082.37 : x
  2. Step 2: Convert to fraction form
    13,748.73/18,972.93 = 8,082.37/x
  3. Step 3: Cross multiply
    13,748.73x = 18,972.93 × 8,082.37
  4. Step 4: Simplify right side
    13,748.73x = 153,346,240.24
  5. Step 5: Solve for x
    x = 153,346,240.24/13,748.73
  6. Step 6: Final answer
    x = 11,153.48

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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.