Home / 19,969.56-27,553.08-12,206.40

Finding the Fourth Proportional to 19,969.56, 27,553.08 and 12,206.40

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Solution

The fourth proportional to 19,969.56, 27,553.08 and 12,206.40 is: 16,841.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,969.56 : 27,553.08 = 12,206.40 : x
  2. Step 2: Convert to fraction form
    19,969.56/27,553.08 = 12,206.40/x
  3. Step 3: Cross multiply
    19,969.56x = 27,553.08 × 12,206.40
  4. Step 4: Simplify right side
    19,969.56x = 336,323,944.49
  5. Step 5: Solve for x
    x = 336,323,944.49/19,969.56
  6. Step 6: Final answer
    x = 16,841.83

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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.