Home / 10,980.36-16,471.55-4,405.66

Finding the Fourth Proportional to 10,980.36, 16,471.55 and 4,405.66

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Solution

The fourth proportional to 10,980.36, 16,471.55 and 4,405.66 is: 6,608.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,980.36 : 16,471.55 = 4,405.66 : x
  2. Step 2: Convert to fraction form
    10,980.36/16,471.55 = 4,405.66/x
  3. Step 3: Cross multiply
    10,980.36x = 16,471.55 × 4,405.66
  4. Step 4: Simplify right side
    10,980.36x = 72,568,018.81
  5. Step 5: Solve for x
    x = 72,568,018.81/10,980.36
  6. Step 6: Final answer
    x = 6,608.89

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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.