Home / 9,720.95-14,577.75-3,145.37

Finding the Fourth Proportional to 9,720.95, 14,577.75 and 3,145.37

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Solution

The fourth proportional to 9,720.95, 14,577.75 and 3,145.37 is: 4,716.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,720.95 : 14,577.75 = 3,145.37 : x
  2. Step 2: Convert to fraction form
    9,720.95/14,577.75 = 3,145.37/x
  3. Step 3: Cross multiply
    9,720.95x = 14,577.75 × 3,145.37
  4. Step 4: Simplify right side
    9,720.95x = 45,852,344.63
  5. Step 5: Solve for x
    x = 45,852,344.63/9,720.95
  6. Step 6: Final answer
    x = 4,716.86

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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.