Home / 11,687.04-16,128.12-6,652.26

Finding the Fourth Proportional to 11,687.04, 16,128.12 and 6,652.26

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Solution

The fourth proportional to 11,687.04, 16,128.12 and 6,652.26 is: 9,180.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,687.04 : 16,128.12 = 6,652.26 : x
  2. Step 2: Convert to fraction form
    11,687.04/16,128.12 = 6,652.26/x
  3. Step 3: Cross multiply
    11,687.04x = 16,128.12 × 6,652.26
  4. Step 4: Simplify right side
    11,687.04x = 107,288,447.55
  5. Step 5: Solve for x
    x = 107,288,447.55/11,687.04
  6. Step 6: Final answer
    x = 9,180.12

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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.