Home / 8,539.63-11,785.50-5,181.67

Finding the Fourth Proportional to 8,539.63, 11,785.50 and 5,181.67

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Solution

The fourth proportional to 8,539.63, 11,785.50 and 5,181.67 is: 7,151.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,539.63 : 11,785.50 = 5,181.67 : x
  2. Step 2: Convert to fraction form
    8,539.63/11,785.50 = 5,181.67/x
  3. Step 3: Cross multiply
    8,539.63x = 11,785.50 × 5,181.67
  4. Step 4: Simplify right side
    8,539.63x = 61,068,586.52
  5. Step 5: Solve for x
    x = 61,068,586.52/8,539.63
  6. Step 6: Final answer
    x = 7,151.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.