Home / 10,916.12-16,377.42-5,076.20

Finding the Fourth Proportional to 10,916.12, 16,377.42 and 5,076.20

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Solution

The fourth proportional to 10,916.12, 16,377.42 and 5,076.20 is: 7,615.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,916.12 : 16,377.42 = 5,076.20 : x
  2. Step 2: Convert to fraction form
    10,916.12/16,377.42 = 5,076.20/x
  3. Step 3: Cross multiply
    10,916.12x = 16,377.42 × 5,076.20
  4. Step 4: Simplify right side
    10,916.12x = 83,135,059.40
  5. Step 5: Solve for x
    x = 83,135,059.40/10,916.12
  6. Step 6: Final answer
    x = 7,615.81

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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.