Home / 13,537.81-18,687.25-10,190.29

Finding the Fourth Proportional to 13,537.81, 18,687.25 and 10,190.29

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Solution

The fourth proportional to 13,537.81, 18,687.25 and 10,190.29 is: 14,066.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,537.81 : 18,687.25 = 10,190.29 : x
  2. Step 2: Convert to fraction form
    13,537.81/18,687.25 = 10,190.29/x
  3. Step 3: Cross multiply
    13,537.81x = 18,687.25 × 10,190.29
  4. Step 4: Simplify right side
    13,537.81x = 190,428,496.80
  5. Step 5: Solve for x
    x = 190,428,496.80/13,537.81
  6. Step 6: Final answer
    x = 14,066.42

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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.