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Finding the Fourth Proportional to 8,907.22, 13,352.02 and 4,218.99

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Solution

The fourth proportional to 8,907.22, 13,352.02 and 4,218.99 is: 6,324.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,907.22 : 13,352.02 = 4,218.99 : x
  2. Step 2: Convert to fraction form
    8,907.22/13,352.02 = 4,218.99/x
  3. Step 3: Cross multiply
    8,907.22x = 13,352.02 × 4,218.99
  4. Step 4: Simplify right side
    8,907.22x = 56,332,038.86
  5. Step 5: Solve for x
    x = 56,332,038.86/8,907.22
  6. Step 6: Final answer
    x = 6,324.31

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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.