Home / 12,170.70-18,290.13-7,241.10

Finding the Fourth Proportional to 12,170.70, 18,290.13 and 7,241.10

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Solution

The fourth proportional to 12,170.70, 18,290.13 and 7,241.10 is: 10,881.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,170.70 : 18,290.13 = 7,241.10 : x
  2. Step 2: Convert to fraction form
    12,170.70/18,290.13 = 7,241.10/x
  3. Step 3: Cross multiply
    12,170.70x = 18,290.13 × 7,241.10
  4. Step 4: Simplify right side
    12,170.70x = 132,440,660.34
  5. Step 5: Solve for x
    x = 132,440,660.34/12,170.70
  6. Step 6: Final answer
    x = 10,881.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.