Home / 10,986.30-16,471.35-4,741.20

Finding the Fourth Proportional to 10,986.30, 16,471.35 and 4,741.20

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Solution

The fourth proportional to 10,986.30, 16,471.35 and 4,741.20 is: 7,108.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,986.30 : 16,471.35 = 4,741.20 : x
  2. Step 2: Convert to fraction form
    10,986.30/16,471.35 = 4,741.20/x
  3. Step 3: Cross multiply
    10,986.30x = 16,471.35 × 4,741.20
  4. Step 4: Simplify right side
    10,986.30x = 78,093,964.62
  5. Step 5: Solve for x
    x = 78,093,964.62/10,986.30
  6. Step 6: Final answer
    x = 7,108.30

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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.