Home / 9,720.72-14,577.40-3,145.14

Finding the Fourth Proportional to 9,720.72, 14,577.40 and 3,145.14

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Solution

The fourth proportional to 9,720.72, 14,577.40 and 3,145.14 is: 4,716.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,720.72 : 14,577.40 = 3,145.14 : x
  2. Step 2: Convert to fraction form
    9,720.72/14,577.40 = 3,145.14/x
  3. Step 3: Cross multiply
    9,720.72x = 14,577.40 × 3,145.14
  4. Step 4: Simplify right side
    9,720.72x = 45,847,963.84
  5. Step 5: Solve for x
    x = 45,847,963.84/9,720.72
  6. Step 6: Final answer
    x = 4,716.52

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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.