Home / 7,418.40-10,241.04-5,072.80

Finding the Fourth Proportional to 7,418.40, 10,241.04 and 5,072.80

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Solution

The fourth proportional to 7,418.40, 10,241.04 and 5,072.80 is: 7,002.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.40 : 10,241.04 = 5,072.80 : x
  2. Step 2: Convert to fraction form
    7,418.40/10,241.04 = 5,072.80/x
  3. Step 3: Cross multiply
    7,418.40x = 10,241.04 × 5,072.80
  4. Step 4: Simplify right side
    7,418.40x = 51,950,747.71
  5. Step 5: Solve for x
    x = 51,950,747.71/7,418.40
  6. Step 6: Final answer
    x = 7,002.96

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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.