Home / 12,005.90-16,569.05-6,629.37

Finding the Fourth Proportional to 12,005.90, 16,569.05 and 6,629.37

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Solution

The fourth proportional to 12,005.90, 16,569.05 and 6,629.37 is: 9,149.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,005.90 : 16,569.05 = 6,629.37 : x
  2. Step 2: Convert to fraction form
    12,005.90/16,569.05 = 6,629.37/x
  3. Step 3: Cross multiply
    12,005.90x = 16,569.05 × 6,629.37
  4. Step 4: Simplify right side
    12,005.90x = 109,842,379.57
  5. Step 5: Solve for x
    x = 109,842,379.57/12,005.90
  6. Step 6: Final answer
    x = 9,149.04

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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.