Home / 13,595.56-18,772.49-8,817.77

Finding the Fourth Proportional to 13,595.56, 18,772.49 and 8,817.77

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Solution

The fourth proportional to 13,595.56, 18,772.49 and 8,817.77 is: 12,175.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,595.56 : 18,772.49 = 8,817.77 : x
  2. Step 2: Convert to fraction form
    13,595.56/18,772.49 = 8,817.77/x
  3. Step 3: Cross multiply
    13,595.56x = 18,772.49 × 8,817.77
  4. Step 4: Simplify right side
    13,595.56x = 165,531,499.15
  5. Step 5: Solve for x
    x = 165,531,499.15/13,595.56
  6. Step 6: Final answer
    x = 12,175.41

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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.