Home / 19,886.67-27,444.13-10,812.64

Finding the Fourth Proportional to 19,886.67, 27,444.13 and 10,812.64

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Solution

The fourth proportional to 19,886.67, 27,444.13 and 10,812.64 is: 14,921.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,886.67 : 27,444.13 = 10,812.64 : x
  2. Step 2: Convert to fraction form
    19,886.67/27,444.13 = 10,812.64/x
  3. Step 3: Cross multiply
    19,886.67x = 27,444.13 × 10,812.64
  4. Step 4: Simplify right side
    19,886.67x = 296,743,584.60
  5. Step 5: Solve for x
    x = 296,743,584.60/19,886.67
  6. Step 6: Final answer
    x = 14,921.73

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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.