Home / 13,731.30-18,934.93-11,748.42

Finding the Fourth Proportional to 13,731.30, 18,934.93 and 11,748.42

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Solution

The fourth proportional to 13,731.30, 18,934.93 and 11,748.42 is: 16,200.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731.30 : 18,934.93 = 11,748.42 : x
  2. Step 2: Convert to fraction form
    13,731.30/18,934.93 = 11,748.42/x
  3. Step 3: Cross multiply
    13,731.30x = 18,934.93 × 11,748.42
  4. Step 4: Simplify right side
    13,731.30x = 222,455,510.31
  5. Step 5: Solve for x
    x = 222,455,510.31/13,731.30
  6. Step 6: Final answer
    x = 16,200.62

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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.