Home / 19,618.88-27,077.64-11,665.64

Finding the Fourth Proportional to 19,618.88, 27,077.64 and 11,665.64

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Solution

The fourth proportional to 19,618.88, 27,077.64 and 11,665.64 is: 16,100.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,618.88 : 27,077.64 = 11,665.64 : x
  2. Step 2: Convert to fraction form
    19,618.88/27,077.64 = 11,665.64/x
  3. Step 3: Cross multiply
    19,618.88x = 27,077.64 × 11,665.64
  4. Step 4: Simplify right side
    19,618.88x = 315,878,000.29
  5. Step 5: Solve for x
    x = 315,878,000.29/19,618.88
  6. Step 6: Final answer
    x = 16,100.72

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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.