Home / 10,879.31-16,315.49-3,482.01

Finding the Fourth Proportional to 10,879.31, 16,315.49 and 3,482.01

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Solution

The fourth proportional to 10,879.31, 16,315.49 and 3,482.01 is: 5,221.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,879.31 : 16,315.49 = 3,482.01 : x
  2. Step 2: Convert to fraction form
    10,879.31/16,315.49 = 3,482.01/x
  3. Step 3: Cross multiply
    10,879.31x = 16,315.49 × 3,482.01
  4. Step 4: Simplify right side
    10,879.31x = 56,810,681.92
  5. Step 5: Solve for x
    x = 56,810,681.92/10,879.31
  6. Step 6: Final answer
    x = 5,221.90

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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.