Home / 8,709.55-13,065.35-3,165.50

Finding the Fourth Proportional to 8,709.55, 13,065.35 and 3,165.50

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Solution

The fourth proportional to 8,709.55, 13,065.35 and 3,165.50 is: 4,748.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,709.55 : 13,065.35 = 3,165.50 : x
  2. Step 2: Convert to fraction form
    8,709.55/13,065.35 = 3,165.50/x
  3. Step 3: Cross multiply
    8,709.55x = 13,065.35 × 3,165.50
  4. Step 4: Simplify right side
    8,709.55x = 41,358,382.26
  5. Step 5: Solve for x
    x = 41,358,382.26/8,709.55
  6. Step 6: Final answer
    x = 4,748.63

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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.