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Finding the Fourth Proportional to 19,693, 27,176.58 and 11,310.28

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Solution

The fourth proportional to 19,693, 27,176.58 and 11,310.28 is: 15,608.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,693 : 27,176.58 = 11,310.28 : x
  2. Step 2: Convert to fraction form
    19,693/27,176.58 = 11,310.28/x
  3. Step 3: Cross multiply
    19,693x = 27,176.58 × 11,310.28
  4. Step 4: Simplify right side
    19,693x = 307,374,729.24
  5. Step 5: Solve for x
    x = 307,374,729.24/19,693
  6. Step 6: Final answer
    x = 15,608.32

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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.