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Finding the Fourth Proportional to 9,010.67, 12,443.28 and 8,519.81

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Solution

The fourth proportional to 9,010.67, 12,443.28 and 8,519.81 is: 11,765.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,010.67 : 12,443.28 = 8,519.81 : x
  2. Step 2: Convert to fraction form
    9,010.67/12,443.28 = 8,519.81/x
  3. Step 3: Cross multiply
    9,010.67x = 12,443.28 × 8,519.81
  4. Step 4: Simplify right side
    9,010.67x = 106,014,381.38
  5. Step 5: Solve for x
    x = 106,014,381.38/9,010.67
  6. Step 6: Final answer
    x = 11,765.43

Related Problems

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Half scale
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Double scale
Find fourth proportional to 9,011.67, 12,444.66 and 8,520.81
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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.