Home / 12,020.54-18,010.11-8,504.76

Finding the Fourth Proportional to 12,020.54, 18,010.11 and 8,504.76

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Solution

The fourth proportional to 12,020.54, 18,010.11 and 8,504.76 is: 12,742.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,020.54 : 18,010.11 = 8,504.76 : x
  2. Step 2: Convert to fraction form
    12,020.54/18,010.11 = 8,504.76/x
  3. Step 3: Cross multiply
    12,020.54x = 18,010.11 × 8,504.76
  4. Step 4: Simplify right side
    12,020.54x = 153,171,762.55
  5. Step 5: Solve for x
    x = 153,171,762.55/12,020.54
  6. Step 6: Final answer
    x = 12,742.51

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.