Home / 13,273.85-18,311.78-8,559.65

Finding the Fourth Proportional to 13,273.85, 18,311.78 and 8,559.65

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Solution

The fourth proportional to 13,273.85, 18,311.78 and 8,559.65 is: 11,808.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,273.85 : 18,311.78 = 8,559.65 : x
  2. Step 2: Convert to fraction form
    13,273.85/18,311.78 = 8,559.65/x
  3. Step 3: Cross multiply
    13,273.85x = 18,311.78 × 8,559.65
  4. Step 4: Simplify right side
    13,273.85x = 156,742,293.32
  5. Step 5: Solve for x
    x = 156,742,293.32/13,273.85
  6. Step 6: Final answer
    x = 11,808.36

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1.5x scale

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.