Home / 8,157.29-12,222.42-7,476.35

Finding the Fourth Proportional to 8,157.29, 12,222.42 and 7,476.35

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Solution

The fourth proportional to 8,157.29, 12,222.42 and 7,476.35 is: 11,202.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,157.29 : 12,222.42 = 7,476.35 : x
  2. Step 2: Convert to fraction form
    8,157.29/12,222.42 = 7,476.35/x
  3. Step 3: Cross multiply
    8,157.29x = 12,222.42 × 7,476.35
  4. Step 4: Simplify right side
    8,157.29x = 91,379,089.77
  5. Step 5: Solve for x
    x = 91,379,089.77/8,157.29
  6. Step 6: Final answer
    x = 11,202.14

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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.