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Finding the Fourth Proportional to 13,774.58, 19,009.41 and 7,642.44

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Solution

The fourth proportional to 13,774.58, 19,009.41 and 7,642.44 is: 10,546.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,774.58 : 19,009.41 = 7,642.44 : x
  2. Step 2: Convert to fraction form
    13,774.58/19,009.41 = 7,642.44/x
  3. Step 3: Cross multiply
    13,774.58x = 19,009.41 × 7,642.44
  4. Step 4: Simplify right side
    13,774.58x = 145,278,275.36
  5. Step 5: Solve for x
    x = 145,278,275.36/13,774.58
  6. Step 6: Final answer
    x = 10,546.84

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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.