Home / 13,276.38-18,323.22-8,559.75

Finding the Fourth Proportional to 13,276.38, 18,323.22 and 8,559.75

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Solution

The fourth proportional to 13,276.38, 18,323.22 and 8,559.75 is: 11,813.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,276.38 : 18,323.22 = 8,559.75 : x
  2. Step 2: Convert to fraction form
    13,276.38/18,323.22 = 8,559.75/x
  3. Step 3: Cross multiply
    13,276.38x = 18,323.22 × 8,559.75
  4. Step 4: Simplify right side
    13,276.38x = 156,842,182.40
  5. Step 5: Solve for x
    x = 156,842,182.40/13,276.38
  6. Step 6: Final answer
    x = 11,813.63

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Double scale
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Similar ratio
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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.