Home / 19,936.96-27,506.40-12,868.08

Finding the Fourth Proportional to 19,936.96, 27,506.40 and 12,868.08

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Solution

The fourth proportional to 19,936.96, 27,506.40 and 12,868.08 is: 17,753.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,936.96 : 27,506.40 = 12,868.08 : x
  2. Step 2: Convert to fraction form
    19,936.96/27,506.40 = 12,868.08/x
  3. Step 3: Cross multiply
    19,936.96x = 27,506.40 × 12,868.08
  4. Step 4: Simplify right side
    19,936.96x = 353,954,555.71
  5. Step 5: Solve for x
    x = 353,954,555.71/19,936.96
  6. Step 6: Final answer
    x = 17,753.69

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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.