Home / 10,780.62-16,165.45-4,932.21

Finding the Fourth Proportional to 10,780.62, 16,165.45 and 4,932.21

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Solution

The fourth proportional to 10,780.62, 16,165.45 and 4,932.21 is: 7,395.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780.62 : 16,165.45 = 4,932.21 : x
  2. Step 2: Convert to fraction form
    10,780.62/16,165.45 = 4,932.21/x
  3. Step 3: Cross multiply
    10,780.62x = 16,165.45 × 4,932.21
  4. Step 4: Simplify right side
    10,780.62x = 79,731,433.19
  5. Step 5: Solve for x
    x = 79,731,433.19/10,780.62
  6. Step 6: Final answer
    x = 7,395.81

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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.