Home / 13,723.14-18,938.28-7,754.85

Finding the Fourth Proportional to 13,723.14, 18,938.28 and 7,754.85

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Solution

The fourth proportional to 13,723.14, 18,938.28 and 7,754.85 is: 10,701.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723.14 : 18,938.28 = 7,754.85 : x
  2. Step 2: Convert to fraction form
    13,723.14/18,938.28 = 7,754.85/x
  3. Step 3: Cross multiply
    13,723.14x = 18,938.28 × 7,754.85
  4. Step 4: Simplify right side
    13,723.14x = 146,863,520.66
  5. Step 5: Solve for x
    x = 146,863,520.66/13,723.14
  6. Step 6: Final answer
    x = 10,701.89

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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.