Home / 8,430.92-12,652.86-3,817.16

Finding the Fourth Proportional to 8,430.92, 12,652.86 and 3,817.16

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Solution

The fourth proportional to 8,430.92, 12,652.86 and 3,817.16 is: 5,728.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430.92 : 12,652.86 = 3,817.16 : x
  2. Step 2: Convert to fraction form
    8,430.92/12,652.86 = 3,817.16/x
  3. Step 3: Cross multiply
    8,430.92x = 12,652.86 × 3,817.16
  4. Step 4: Simplify right side
    8,430.92x = 48,297,991.08
  5. Step 5: Solve for x
    x = 48,297,991.08/8,430.92
  6. Step 6: Final answer
    x = 5,728.67

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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.