Home / 13,265.82-18,315.68-10,235.43

Finding the Fourth Proportional to 13,265.82, 18,315.68 and 10,235.43

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Solution

The fourth proportional to 13,265.82, 18,315.68 and 10,235.43 is: 14,131.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,265.82 : 18,315.68 = 10,235.43 : x
  2. Step 2: Convert to fraction form
    13,265.82/18,315.68 = 10,235.43/x
  3. Step 3: Cross multiply
    13,265.82x = 18,315.68 × 10,235.43
  4. Step 4: Simplify right side
    13,265.82x = 187,468,809.37
  5. Step 5: Solve for x
    x = 187,468,809.37/13,265.82
  6. Step 6: Final answer
    x = 14,131.72

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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.