Home / 16,650.90-22,979.70-9,579.60

Finding the Fourth Proportional to 16,650.90, 22,979.70 and 9,579.60

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Solution

The fourth proportional to 16,650.90, 22,979.70 and 9,579.60 is: 13,220.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,650.90 : 22,979.70 = 9,579.60 : x
  2. Step 2: Convert to fraction form
    16,650.90/22,979.70 = 9,579.60/x
  3. Step 3: Cross multiply
    16,650.90x = 22,979.70 × 9,579.60
  4. Step 4: Simplify right side
    16,650.90x = 220,136,334.12
  5. Step 5: Solve for x
    x = 220,136,334.12/16,650.90
  6. Step 6: Final answer
    x = 13,220.69

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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.