Home / 7,861.56-11,772.87-4,564.65

Finding the Fourth Proportional to 7,861.56, 11,772.87 and 4,564.65

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Solution

The fourth proportional to 7,861.56, 11,772.87 and 4,564.65 is: 6,835.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,861.56 : 11,772.87 = 4,564.65 : x
  2. Step 2: Convert to fraction form
    7,861.56/11,772.87 = 4,564.65/x
  3. Step 3: Cross multiply
    7,861.56x = 11,772.87 × 4,564.65
  4. Step 4: Simplify right side
    7,861.56x = 53,739,031.05
  5. Step 5: Solve for x
    x = 53,739,031.05/7,861.56
  6. Step 6: Final answer
    x = 6,835.67

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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.