Home / 9,982.46-13,780.23-6,447.40

Finding the Fourth Proportional to 9,982.46, 13,780.23 and 6,447.40

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Solution

The fourth proportional to 9,982.46, 13,780.23 and 6,447.40 is: 8,900.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,982.46 : 13,780.23 = 6,447.40 : x
  2. Step 2: Convert to fraction form
    9,982.46/13,780.23 = 6,447.40/x
  3. Step 3: Cross multiply
    9,982.46x = 13,780.23 × 6,447.40
  4. Step 4: Simplify right side
    9,982.46x = 88,846,596.27
  5. Step 5: Solve for x
    x = 88,846,596.27/9,982.46
  6. Step 6: Final answer
    x = 8,900.27

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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.