Home / 10,980.05-16,471.69-3,187.85

Finding the Fourth Proportional to 10,980.05, 16,471.69 and 3,187.85

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Solution

The fourth proportional to 10,980.05, 16,471.69 and 3,187.85 is: 4,782.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,980.05 : 16,471.69 = 3,187.85 : x
  2. Step 2: Convert to fraction form
    10,980.05/16,471.69 = 3,187.85/x
  3. Step 3: Cross multiply
    10,980.05x = 16,471.69 × 3,187.85
  4. Step 4: Simplify right side
    10,980.05x = 52,509,186.64
  5. Step 5: Solve for x
    x = 52,509,186.64/10,980.05
  6. Step 6: Final answer
    x = 4,782.24

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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.