Home / 13,899.30-19,161.27-8,591.10

Finding the Fourth Proportional to 13,899.30, 19,161.27 and 8,591.10

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Solution

The fourth proportional to 13,899.30, 19,161.27 and 8,591.10 is: 11,843.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,899.30 : 19,161.27 = 8,591.10 : x
  2. Step 2: Convert to fraction form
    13,899.30/19,161.27 = 8,591.10/x
  3. Step 3: Cross multiply
    13,899.30x = 19,161.27 × 8,591.10
  4. Step 4: Simplify right side
    13,899.30x = 164,616,386.70
  5. Step 5: Solve for x
    x = 164,616,386.70/13,899.30
  6. Step 6: Final answer
    x = 11,843.50

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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.