Home / 13,274.70-18,312.39-8,241.90

Finding the Fourth Proportional to 13,274.70, 18,312.39 and 8,241.90

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Solution

The fourth proportional to 13,274.70, 18,312.39 and 8,241.90 is: 11,369.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,274.70 : 18,312.39 = 8,241.90 : x
  2. Step 2: Convert to fraction form
    13,274.70/18,312.39 = 8,241.90/x
  3. Step 3: Cross multiply
    13,274.70x = 18,312.39 × 8,241.90
  4. Step 4: Simplify right side
    13,274.70x = 150,928,887.14
  5. Step 5: Solve for x
    x = 150,928,887.14/13,274.70
  6. Step 6: Final answer
    x = 11,369.66

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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.