Home / 7,416.40-11,081.03-7,157.98

Finding the Fourth Proportional to 7,416.40, 11,081.03 and 7,157.98

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Solution

The fourth proportional to 7,416.40, 11,081.03 and 7,157.98 is: 10,694.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,416.40 : 11,081.03 = 7,157.98 : x
  2. Step 2: Convert to fraction form
    7,416.40/11,081.03 = 7,157.98/x
  3. Step 3: Cross multiply
    7,416.40x = 11,081.03 × 7,157.98
  4. Step 4: Simplify right side
    7,416.40x = 79,317,791.12
  5. Step 5: Solve for x
    x = 79,317,791.12/7,416.40
  6. Step 6: Final answer
    x = 10,694.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.