Home / 13,385.52-18,487.78-10,706.04

Finding the Fourth Proportional to 13,385.52, 18,487.78 and 10,706.04

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Solution

The fourth proportional to 13,385.52, 18,487.78 and 10,706.04 is: 14,786.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.52 : 18,487.78 = 10,706.04 : x
  2. Step 2: Convert to fraction form
    13,385.52/18,487.78 = 10,706.04/x
  3. Step 3: Cross multiply
    13,385.52x = 18,487.78 × 10,706.04
  4. Step 4: Simplify right side
    13,385.52x = 197,930,885.43
  5. Step 5: Solve for x
    x = 197,930,885.43/13,385.52
  6. Step 6: Final answer
    x = 14,786.94

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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.