Home / 13,916.20-19,205.39-8,614.10

Finding the Fourth Proportional to 13,916.20, 19,205.39 and 8,614.10

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Solution

The fourth proportional to 13,916.20, 19,205.39 and 8,614.10 is: 11,888.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,916.20 : 19,205.39 = 8,614.10 : x
  2. Step 2: Convert to fraction form
    13,916.20/19,205.39 = 8,614.10/x
  3. Step 3: Cross multiply
    13,916.20x = 19,205.39 × 8,614.10
  4. Step 4: Simplify right side
    13,916.20x = 165,437,150.00
  5. Step 5: Solve for x
    x = 165,437,150.00/13,916.20
  6. Step 6: Final answer
    x = 11,888.10

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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.