Home / 18,340.76-25,310.45-10,382.81

Finding the Fourth Proportional to 18,340.76, 25,310.45 and 10,382.81

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Solution

The fourth proportional to 18,340.76, 25,310.45 and 10,382.81 is: 14,328.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,340.76 : 25,310.45 = 10,382.81 : x
  2. Step 2: Convert to fraction form
    18,340.76/25,310.45 = 10,382.81/x
  3. Step 3: Cross multiply
    18,340.76x = 25,310.45 × 10,382.81
  4. Step 4: Simplify right side
    18,340.76x = 262,793,593.36
  5. Step 5: Solve for x
    x = 262,793,593.36/18,340.76
  6. Step 6: Final answer
    x = 14,328.39

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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.