Home / 18,938.43-26,135.21-10,440.85

Finding the Fourth Proportional to 18,938.43, 26,135.21 and 10,440.85

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Solution

The fourth proportional to 18,938.43, 26,135.21 and 10,440.85 is: 14,408.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,938.43 : 26,135.21 = 10,440.85 : x
  2. Step 2: Convert to fraction form
    18,938.43/26,135.21 = 10,440.85/x
  3. Step 3: Cross multiply
    18,938.43x = 26,135.21 × 10,440.85
  4. Step 4: Simplify right side
    18,938.43x = 272,873,758.37
  5. Step 5: Solve for x
    x = 272,873,758.37/18,938.43
  6. Step 6: Final answer
    x = 14,408.47

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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.