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Finding the Fourth Proportional to 16,617.72, 22,930.86 and 9,165.24

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Solution

The fourth proportional to 16,617.72, 22,930.86 and 9,165.24 is: 12,647.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,617.72 : 22,930.86 = 9,165.24 : x
  2. Step 2: Convert to fraction form
    16,617.72/22,930.86 = 9,165.24/x
  3. Step 3: Cross multiply
    16,617.72x = 22,930.86 × 9,165.24
  4. Step 4: Simplify right side
    16,617.72x = 210,166,835.31
  5. Step 5: Solve for x
    x = 210,166,835.31/16,617.72
  6. Step 6: Final answer
    x = 12,647.15

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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.