Home / 19,140.42-26,418.98-12,425.68

Finding the Fourth Proportional to 19,140.42, 26,418.98 and 12,425.68

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Solution

The fourth proportional to 19,140.42, 26,418.98 and 12,425.68 is: 17,150.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,140.42 : 26,418.98 = 12,425.68 : x
  2. Step 2: Convert to fraction form
    19,140.42/26,418.98 = 12,425.68/x
  3. Step 3: Cross multiply
    19,140.42x = 26,418.98 × 12,425.68
  4. Step 4: Simplify right side
    19,140.42x = 328,273,791.41
  5. Step 5: Solve for x
    x = 328,273,791.41/19,140.42
  6. Step 6: Final answer
    x = 17,150.81

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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.