Home / 9,720.18-14,581.68-4,790.12

Finding the Fourth Proportional to 9,720.18, 14,581.68 and 4,790.12

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Solution

The fourth proportional to 9,720.18, 14,581.68 and 4,790.12 is: 7,185.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,720.18 : 14,581.68 = 4,790.12 : x
  2. Step 2: Convert to fraction form
    9,720.18/14,581.68 = 4,790.12/x
  3. Step 3: Cross multiply
    9,720.18x = 14,581.68 × 4,790.12
  4. Step 4: Simplify right side
    9,720.18x = 69,847,997.00
  5. Step 5: Solve for x
    x = 69,847,997.00/9,720.18
  6. Step 6: Final answer
    x = 7,185.87

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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.