Home / 8,140.61-12,210.92-3,755.67

Finding the Fourth Proportional to 8,140.61, 12,210.92 and 3,755.67

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Solution

The fourth proportional to 8,140.61, 12,210.92 and 3,755.67 is: 5,633.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.61 : 12,210.92 = 3,755.67 : x
  2. Step 2: Convert to fraction form
    8,140.61/12,210.92 = 3,755.67/x
  3. Step 3: Cross multiply
    8,140.61x = 12,210.92 × 3,755.67
  4. Step 4: Simplify right side
    8,140.61x = 45,860,167.14
  5. Step 5: Solve for x
    x = 45,860,167.14/8,140.61
  6. Step 6: Final answer
    x = 5,633.51

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Similar ratio
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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.