Home / 8,911.05-13,371.18-3,916.92

Finding the Fourth Proportional to 8,911.05, 13,371.18 and 3,916.92

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Solution

The fourth proportional to 8,911.05, 13,371.18 and 3,916.92 is: 5,877.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,911.05 : 13,371.18 = 3,916.92 : x
  2. Step 2: Convert to fraction form
    8,911.05/13,371.18 = 3,916.92/x
  3. Step 3: Cross multiply
    8,911.05x = 13,371.18 × 3,916.92
  4. Step 4: Simplify right side
    8,911.05x = 52,373,842.37
  5. Step 5: Solve for x
    x = 52,373,842.37/8,911.05
  6. Step 6: Final answer
    x = 5,877.40

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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.