Home / 7,005.09-9,666.89-3,818.41

Finding the Fourth Proportional to 7,005.09, 9,666.89 and 3,818.41

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Solution

The fourth proportional to 7,005.09, 9,666.89 and 3,818.41 is: 5,269.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,005.09 : 9,666.89 = 3,818.41 : x
  2. Step 2: Convert to fraction form
    7,005.09/9,666.89 = 3,818.41/x
  3. Step 3: Cross multiply
    7,005.09x = 9,666.89 × 3,818.41
  4. Step 4: Simplify right side
    7,005.09x = 36,912,149.44
  5. Step 5: Solve for x
    x = 36,912,149.44/7,005.09
  6. Step 6: Final answer
    x = 5,269.33

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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.