Home / 11,119.42-16,683.78-4,876.20

Finding the Fourth Proportional to 11,119.42, 16,683.78 and 4,876.20

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Solution

The fourth proportional to 11,119.42, 16,683.78 and 4,876.20 is: 7,316.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,119.42 : 16,683.78 = 4,876.20 : x
  2. Step 2: Convert to fraction form
    11,119.42/16,683.78 = 4,876.20/x
  3. Step 3: Cross multiply
    11,119.42x = 16,683.78 × 4,876.20
  4. Step 4: Simplify right side
    11,119.42x = 81,353,448.04
  5. Step 5: Solve for x
    x = 81,353,448.04/11,119.42
  6. Step 6: Final answer
    x = 7,316.34

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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.