Home / 10,780.89-16,166.09-4,117.68

Finding the Fourth Proportional to 10,780.89, 16,166.09 and 4,117.68

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Solution

The fourth proportional to 10,780.89, 16,166.09 and 4,117.68 is: 6,174.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780.89 : 16,166.09 = 4,117.68 : x
  2. Step 2: Convert to fraction form
    10,780.89/16,166.09 = 4,117.68/x
  3. Step 3: Cross multiply
    10,780.89x = 16,166.09 × 4,117.68
  4. Step 4: Simplify right side
    10,780.89x = 66,566,704.64
  5. Step 5: Solve for x
    x = 66,566,704.64/10,780.89
  6. Step 6: Final answer
    x = 6,174.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.