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Finding the Fourth Proportional to 16,779, 23,155.03 and 9,225.81

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Solution

The fourth proportional to 16,779, 23,155.03 and 9,225.81 is: 12,731.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,779 : 23,155.03 = 9,225.81 : x
  2. Step 2: Convert to fraction form
    16,779/23,155.03 = 9,225.81/x
  3. Step 3: Cross multiply
    16,779x = 23,155.03 × 9,225.81
  4. Step 4: Simplify right side
    16,779x = 213,623,907.32
  5. Step 5: Solve for x
    x = 213,623,907.32/16,779
  6. Step 6: Final answer
    x = 12,731.62

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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.