Home / 13,216.47-18,228.14-11,619.73

Finding the Fourth Proportional to 13,216.47, 18,228.14 and 11,619.73

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Solution

The fourth proportional to 13,216.47, 18,228.14 and 11,619.73 is: 16,025.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216.47 : 18,228.14 = 11,619.73 : x
  2. Step 2: Convert to fraction form
    13,216.47/18,228.14 = 11,619.73/x
  3. Step 3: Cross multiply
    13,216.47x = 18,228.14 × 11,619.73
  4. Step 4: Simplify right side
    13,216.47x = 211,806,022.20
  5. Step 5: Solve for x
    x = 211,806,022.20/13,216.47
  6. Step 6: Final answer
    x = 16,025.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.