Home / 18,339.82-25,308.45-10,382.78

Finding the Fourth Proportional to 18,339.82, 25,308.45 and 10,382.78

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Solution

The fourth proportional to 18,339.82, 25,308.45 and 10,382.78 is: 14,327.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,339.82 : 25,308.45 = 10,382.78 : x
  2. Step 2: Convert to fraction form
    18,339.82/25,308.45 = 10,382.78/x
  3. Step 3: Cross multiply
    18,339.82x = 25,308.45 × 10,382.78
  4. Step 4: Simplify right side
    18,339.82x = 262,772,131.76
  5. Step 5: Solve for x
    x = 262,772,131.76/18,339.82
  6. Step 6: Final answer
    x = 14,327.96

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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.