Home / 13,140.24-19,716.12-5,746.56

Finding the Fourth Proportional to 13,140.24, 19,716.12 and 5,746.56

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Solution

The fourth proportional to 13,140.24, 19,716.12 and 5,746.56 is: 8,622.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,140.24 : 19,716.12 = 5,746.56 : x
  2. Step 2: Convert to fraction form
    13,140.24/19,716.12 = 5,746.56/x
  3. Step 3: Cross multiply
    13,140.24x = 19,716.12 × 5,746.56
  4. Step 4: Simplify right side
    13,140.24x = 113,299,866.55
  5. Step 5: Solve for x
    x = 113,299,866.55/13,140.24
  6. Step 6: Final answer
    x = 8,622.36

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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.