Home / 13,216.16-18,221.52-9,443.84

Finding the Fourth Proportional to 13,216.16, 18,221.52 and 9,443.84

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Solution

The fourth proportional to 13,216.16, 18,221.52 and 9,443.84 is: 13,020.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216.16 : 18,221.52 = 9,443.84 : x
  2. Step 2: Convert to fraction form
    13,216.16/18,221.52 = 9,443.84/x
  3. Step 3: Cross multiply
    13,216.16x = 18,221.52 × 9,443.84
  4. Step 4: Simplify right side
    13,216.16x = 172,081,119.44
  5. Step 5: Solve for x
    x = 172,081,119.44/13,216.16
  6. Step 6: Final answer
    x = 13,020.51

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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.