Home / 13,250.42-18,289.06-8,211.76

Finding the Fourth Proportional to 13,250.42, 18,289.06 and 8,211.76

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Solution

The fourth proportional to 13,250.42, 18,289.06 and 8,211.76 is: 11,334.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,250.42 : 18,289.06 = 8,211.76 : x
  2. Step 2: Convert to fraction form
    13,250.42/18,289.06 = 8,211.76/x
  3. Step 3: Cross multiply
    13,250.42x = 18,289.06 × 8,211.76
  4. Step 4: Simplify right side
    13,250.42x = 150,185,371.35
  5. Step 5: Solve for x
    x = 150,185,371.35/13,250.42
  6. Step 6: Final answer
    x = 11,334.39

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Half scale
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Double scale
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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.