Home / 10,991.42-15,169.25-6,276.41

Finding the Fourth Proportional to 10,991.42, 15,169.25 and 6,276.41

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Solution

The fourth proportional to 10,991.42, 15,169.25 and 6,276.41 is: 8,662.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,991.42 : 15,169.25 = 6,276.41 : x
  2. Step 2: Convert to fraction form
    10,991.42/15,169.25 = 6,276.41/x
  3. Step 3: Cross multiply
    10,991.42x = 15,169.25 × 6,276.41
  4. Step 4: Simplify right side
    10,991.42x = 95,208,432.39
  5. Step 5: Solve for x
    x = 95,208,432.39/10,991.42
  6. Step 6: Final answer
    x = 8,662.07

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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.