Home / 13,534.31-18,682.41-10,186.79

Finding the Fourth Proportional to 13,534.31, 18,682.41 and 10,186.79

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Solution

The fourth proportional to 13,534.31, 18,682.41 and 10,186.79 is: 14,061.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,534.31 : 18,682.41 = 10,186.79 : x
  2. Step 2: Convert to fraction form
    13,534.31/18,682.41 = 10,186.79/x
  3. Step 3: Cross multiply
    13,534.31x = 18,682.41 × 10,186.79
  4. Step 4: Simplify right side
    13,534.31x = 190,313,732.15
  5. Step 5: Solve for x
    x = 190,313,732.15/13,534.31
  6. Step 6: Final answer
    x = 14,061.57

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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.