Home / 6,669.86-9,205.53-3,876.98

Finding the Fourth Proportional to 6,669.86, 9,205.53 and 3,876.98

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Solution

The fourth proportional to 6,669.86, 9,205.53 and 3,876.98 is: 5,350.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,669.86 : 9,205.53 = 3,876.98 : x
  2. Step 2: Convert to fraction form
    6,669.86/9,205.53 = 3,876.98/x
  3. Step 3: Cross multiply
    6,669.86x = 9,205.53 × 3,876.98
  4. Step 4: Simplify right side
    6,669.86x = 35,689,655.70
  5. Step 5: Solve for x
    x = 35,689,655.70/6,669.86
  6. Step 6: Final answer
    x = 5,350.89

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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.