Home / 13,241.88-18,281.43-9,214.56

Finding the Fourth Proportional to 13,241.88, 18,281.43 and 9,214.56

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Solution

The fourth proportional to 13,241.88, 18,281.43 and 9,214.56 is: 12,721.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,241.88 : 18,281.43 = 9,214.56 : x
  2. Step 2: Convert to fraction form
    13,241.88/18,281.43 = 9,214.56/x
  3. Step 3: Cross multiply
    13,241.88x = 18,281.43 × 9,214.56
  4. Step 4: Simplify right side
    13,241.88x = 168,455,333.62
  5. Step 5: Solve for x
    x = 168,455,333.62/13,241.88
  6. Step 6: Final answer
    x = 12,721.41

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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.