Home / 13,856.83-20,785.25-6,466.47

Finding the Fourth Proportional to 13,856.83, 20,785.25 and 6,466.47

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Solution

The fourth proportional to 13,856.83, 20,785.25 and 6,466.47 is: 9,699.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,856.83 : 20,785.25 = 6,466.47 : x
  2. Step 2: Convert to fraction form
    13,856.83/20,785.25 = 6,466.47/x
  3. Step 3: Cross multiply
    13,856.83x = 20,785.25 × 6,466.47
  4. Step 4: Simplify right side
    13,856.83x = 134,407,195.57
  5. Step 5: Solve for x
    x = 134,407,195.57/13,856.83
  6. Step 6: Final answer
    x = 9,699.71

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Similar ratio
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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.