Home / 13,581.80-18,743.66-10,218.59

Finding the Fourth Proportional to 13,581.80, 18,743.66 and 10,218.59

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Solution

The fourth proportional to 13,581.80, 18,743.66 and 10,218.59 is: 14,102.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,581.80 : 18,743.66 = 10,218.59 : x
  2. Step 2: Convert to fraction form
    13,581.80/18,743.66 = 10,218.59/x
  3. Step 3: Cross multiply
    13,581.80x = 18,743.66 × 10,218.59
  4. Step 4: Simplify right side
    13,581.80x = 191,533,776.64
  5. Step 5: Solve for x
    x = 191,533,776.64/13,581.80
  6. Step 6: Final answer
    x = 14,102.24

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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.