Home / 9,720.21-14,577.28-3,145.04

Finding the Fourth Proportional to 9,720.21, 14,577.28 and 3,145.04

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Solution

The fourth proportional to 9,720.21, 14,577.28 and 3,145.04 is: 4,716.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,720.21 : 14,577.28 = 3,145.04 : x
  2. Step 2: Convert to fraction form
    9,720.21/14,577.28 = 3,145.04/x
  3. Step 3: Cross multiply
    9,720.21x = 14,577.28 × 3,145.04
  4. Step 4: Simplify right side
    9,720.21x = 45,846,102.61
  5. Step 5: Solve for x
    x = 45,846,102.61/9,720.21
  6. Step 6: Final answer
    x = 4,716.57

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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.