Home / 13,336.80-18,422.34-10,231.32

Finding the Fourth Proportional to 13,336.80, 18,422.34 and 10,231.32

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Solution

The fourth proportional to 13,336.80, 18,422.34 and 10,231.32 is: 14,132.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,336.80 : 18,422.34 = 10,231.32 : x
  2. Step 2: Convert to fraction form
    13,336.80/18,422.34 = 10,231.32/x
  3. Step 3: Cross multiply
    13,336.80x = 18,422.34 × 10,231.32
  4. Step 4: Simplify right side
    13,336.80x = 188,484,855.69
  5. Step 5: Solve for x
    x = 188,484,855.69/13,336.80
  6. Step 6: Final answer
    x = 14,132.69

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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.