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Finding the Fourth Proportional to 13,965.84, 19,274.04 and 7,679.52

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Solution

The fourth proportional to 13,965.84, 19,274.04 and 7,679.52 is: 10,598.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,965.84 : 19,274.04 = 7,679.52 : x
  2. Step 2: Convert to fraction form
    13,965.84/19,274.04 = 7,679.52/x
  3. Step 3: Cross multiply
    13,965.84x = 19,274.04 × 7,679.52
  4. Step 4: Simplify right side
    13,965.84x = 148,015,375.66
  5. Step 5: Solve for x
    x = 148,015,375.66/13,965.84
  6. Step 6: Final answer
    x = 10,598.39

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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.