Home / 11,385.18-17,081.10-4,720.46

Finding the Fourth Proportional to 11,385.18, 17,081.10 and 4,720.46

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Solution

The fourth proportional to 11,385.18, 17,081.10 and 4,720.46 is: 7,082.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,385.18 : 17,081.10 = 4,720.46 : x
  2. Step 2: Convert to fraction form
    11,385.18/17,081.10 = 4,720.46/x
  3. Step 3: Cross multiply
    11,385.18x = 17,081.10 × 4,720.46
  4. Step 4: Simplify right side
    11,385.18x = 80,630,563.90
  5. Step 5: Solve for x
    x = 80,630,563.90/11,385.18
  6. Step 6: Final answer
    x = 7,082.06

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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.