Home / 13,078.42-19,590.54-6,394.80

Finding the Fourth Proportional to 13,078.42, 19,590.54 and 6,394.80

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Solution

The fourth proportional to 13,078.42, 19,590.54 and 6,394.80 is: 9,578.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,078.42 : 19,590.54 = 6,394.80 : x
  2. Step 2: Convert to fraction form
    13,078.42/19,590.54 = 6,394.80/x
  3. Step 3: Cross multiply
    13,078.42x = 19,590.54 × 6,394.80
  4. Step 4: Simplify right side
    13,078.42x = 125,277,585.19
  5. Step 5: Solve for x
    x = 125,277,585.19/13,078.42
  6. Step 6: Final answer
    x = 9,578.95

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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.