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Finding the Fourth Proportional to 16,491.26, 22,762.07 and 9,421.78

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Solution

The fourth proportional to 16,491.26, 22,762.07 and 9,421.78 is: 13,004.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,491.26 : 22,762.07 = 9,421.78 : x
  2. Step 2: Convert to fraction form
    16,491.26/22,762.07 = 9,421.78/x
  3. Step 3: Cross multiply
    16,491.26x = 22,762.07 × 9,421.78
  4. Step 4: Simplify right side
    16,491.26x = 214,459,215.88
  5. Step 5: Solve for x
    x = 214,459,215.88/16,491.26
  6. Step 6: Final answer
    x = 13,004.42

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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.