Home / 8,087.20-12,125.55-3,157.35

Finding the Fourth Proportional to 8,087.20, 12,125.55 and 3,157.35

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Solution

The fourth proportional to 8,087.20, 12,125.55 and 3,157.35 is: 4,733.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,087.20 : 12,125.55 = 3,157.35 : x
  2. Step 2: Convert to fraction form
    8,087.20/12,125.55 = 3,157.35/x
  3. Step 3: Cross multiply
    8,087.20x = 12,125.55 × 3,157.35
  4. Step 4: Simplify right side
    8,087.20x = 38,284,605.29
  5. Step 5: Solve for x
    x = 38,284,605.29/8,087.20
  6. Step 6: Final answer
    x = 4,733.98

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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.