Home / 12,578.28-17,357.91-6,835.86

Finding the Fourth Proportional to 12,578.28, 17,357.91 and 6,835.86

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Solution

The fourth proportional to 12,578.28, 17,357.91 and 6,835.86 is: 9,433.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,578.28 : 17,357.91 = 6,835.86 : x
  2. Step 2: Convert to fraction form
    12,578.28/17,357.91 = 6,835.86/x
  3. Step 3: Cross multiply
    12,578.28x = 17,357.91 × 6,835.86
  4. Step 4: Simplify right side
    12,578.28x = 118,656,242.65
  5. Step 5: Solve for x
    x = 118,656,242.65/12,578.28
  6. Step 6: Final answer
    x = 9,433.42

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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.