Home / 13,641.12-18,821.93-8,599.41

Finding the Fourth Proportional to 13,641.12, 18,821.93 and 8,599.41

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Solution

The fourth proportional to 13,641.12, 18,821.93 and 8,599.41 is: 11,865.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,641.12 : 18,821.93 = 8,599.41 : x
  2. Step 2: Convert to fraction form
    13,641.12/18,821.93 = 8,599.41/x
  3. Step 3: Cross multiply
    13,641.12x = 18,821.93 × 8,599.41
  4. Step 4: Simplify right side
    13,641.12x = 161,857,450.06
  5. Step 5: Solve for x
    x = 161,857,450.06/13,641.12
  6. Step 6: Final answer
    x = 11,865.41

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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.