Home / 10,291.60-15,428.16-3,716.24

Finding the Fourth Proportional to 10,291.60, 15,428.16 and 3,716.24

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Solution

The fourth proportional to 10,291.60, 15,428.16 and 3,716.24 is: 5,571.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,291.60 : 15,428.16 = 3,716.24 : x
  2. Step 2: Convert to fraction form
    10,291.60/15,428.16 = 3,716.24/x
  3. Step 3: Cross multiply
    10,291.60x = 15,428.16 × 3,716.24
  4. Step 4: Simplify right side
    10,291.60x = 57,334,745.32
  5. Step 5: Solve for x
    x = 57,334,745.32/10,291.60
  6. Step 6: Final answer
    x = 5,571.02

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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.