Home / 13,253.25-18,270.21-9,261.97

Finding the Fourth Proportional to 13,253.25, 18,270.21 and 9,261.97

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Solution

The fourth proportional to 13,253.25, 18,270.21 and 9,261.97 is: 12,768.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,253.25 : 18,270.21 = 9,261.97 : x
  2. Step 2: Convert to fraction form
    13,253.25/18,270.21 = 9,261.97/x
  3. Step 3: Cross multiply
    13,253.25x = 18,270.21 × 9,261.97
  4. Step 4: Simplify right side
    13,253.25x = 169,218,136.91
  5. Step 5: Solve for x
    x = 169,218,136.91/13,253.25
  6. Step 6: Final answer
    x = 12,768.05

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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.