Home / 11,720.16-16,173.36-6,753.76

Finding the Fourth Proportional to 11,720.16, 16,173.36 and 6,753.76

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Solution

The fourth proportional to 11,720.16, 16,173.36 and 6,753.76 is: 9,319.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.16 : 16,173.36 = 6,753.76 : x
  2. Step 2: Convert to fraction form
    11,720.16/16,173.36 = 6,753.76/x
  3. Step 3: Cross multiply
    11,720.16x = 16,173.36 × 6,753.76
  4. Step 4: Simplify right side
    11,720.16x = 109,230,991.83
  5. Step 5: Solve for x
    x = 109,230,991.83/11,720.16
  6. Step 6: Final answer
    x = 9,319.92

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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.