Home / 10,926.90-15,078.96-6,211.35

Finding the Fourth Proportional to 10,926.90, 15,078.96 and 6,211.35

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Solution

The fourth proportional to 10,926.90, 15,078.96 and 6,211.35 is: 8,571.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,926.90 : 15,078.96 = 6,211.35 : x
  2. Step 2: Convert to fraction form
    10,926.90/15,078.96 = 6,211.35/x
  3. Step 3: Cross multiply
    10,926.90x = 15,078.96 × 6,211.35
  4. Step 4: Simplify right side
    10,926.90x = 93,660,698.20
  5. Step 5: Solve for x
    x = 93,660,698.20/10,926.90
  6. Step 6: Final answer
    x = 8,571.57

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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.