Home / 18,940.38-26,137.87-10,442.81

Finding the Fourth Proportional to 18,940.38, 26,137.87 and 10,442.81

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Solution

The fourth proportional to 18,940.38, 26,137.87 and 10,442.81 is: 14,411.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,940.38 : 26,137.87 = 10,442.81 : x
  2. Step 2: Convert to fraction form
    18,940.38/26,137.87 = 10,442.81/x
  3. Step 3: Cross multiply
    18,940.38x = 26,137.87 × 10,442.81
  4. Step 4: Simplify right side
    18,940.38x = 272,952,627.31
  5. Step 5: Solve for x
    x = 272,952,627.31/18,940.38
  6. Step 6: Final answer
    x = 14,411.15

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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.