Home / 18,387.41-25,366.17-10,830.11

Finding the Fourth Proportional to 18,387.41, 25,366.17 and 10,830.11

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Solution

The fourth proportional to 18,387.41, 25,366.17 and 10,830.11 is: 14,940.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,387.41 : 25,366.17 = 10,830.11 : x
  2. Step 2: Convert to fraction form
    18,387.41/25,366.17 = 10,830.11/x
  3. Step 3: Cross multiply
    18,387.41x = 25,366.17 × 10,830.11
  4. Step 4: Simplify right side
    18,387.41x = 274,718,284.55
  5. Step 5: Solve for x
    x = 274,718,284.55/18,387.41
  6. Step 6: Final answer
    x = 14,940.57

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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.