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Finding the Fourth Proportional to 12,264.22, 18,379.92 and 7,000.84

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Solution

The fourth proportional to 12,264.22, 18,379.92 and 7,000.84 is: 10,491.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,264.22 : 18,379.92 = 7,000.84 : x
  2. Step 2: Convert to fraction form
    12,264.22/18,379.92 = 7,000.84/x
  3. Step 3: Cross multiply
    12,264.22x = 18,379.92 × 7,000.84
  4. Step 4: Simplify right side
    12,264.22x = 128,674,879.13
  5. Step 5: Solve for x
    x = 128,674,879.13/12,264.22
  6. Step 6: Final answer
    x = 10,491.89

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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.