Home / 13,761.43-18,970.80-10,171.10

Finding the Fourth Proportional to 13,761.43, 18,970.80 and 10,171.10

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Solution

The fourth proportional to 13,761.43, 18,970.80 and 10,171.10 is: 14,021.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,761.43 : 18,970.80 = 10,171.10 : x
  2. Step 2: Convert to fraction form
    13,761.43/18,970.80 = 10,171.10/x
  3. Step 3: Cross multiply
    13,761.43x = 18,970.80 × 10,171.10
  4. Step 4: Simplify right side
    13,761.43x = 192,953,903.88
  5. Step 5: Solve for x
    x = 192,953,903.88/13,761.43
  6. Step 6: Final answer
    x = 14,021.36

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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.