Home / 17,400.17-26,078.37-12,479.42

Finding the Fourth Proportional to 17,400.17, 26,078.37 and 12,479.42

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Solution

The fourth proportional to 17,400.17, 26,078.37 and 12,479.42 is: 18,703.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,400.17 : 26,078.37 = 12,479.42 : x
  2. Step 2: Convert to fraction form
    17,400.17/26,078.37 = 12,479.42/x
  3. Step 3: Cross multiply
    17,400.17x = 26,078.37 × 12,479.42
  4. Step 4: Simplify right side
    17,400.17x = 325,442,801.75
  5. Step 5: Solve for x
    x = 325,442,801.75/17,400.17
  6. Step 6: Final answer
    x = 18,703.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.