Home / 11,699.60-16,143.58-6,663.92

Finding the Fourth Proportional to 11,699.60, 16,143.58 and 6,663.92

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Solution

The fourth proportional to 11,699.60, 16,143.58 and 6,663.92 is: 9,195.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,699.60 : 16,143.58 = 6,663.92 : x
  2. Step 2: Convert to fraction form
    11,699.60/16,143.58 = 6,663.92/x
  3. Step 3: Cross multiply
    11,699.60x = 16,143.58 × 6,663.92
  4. Step 4: Simplify right side
    11,699.60x = 107,579,457.21
  5. Step 5: Solve for x
    x = 107,579,457.21/11,699.60
  6. Step 6: Final answer
    x = 9,195.14

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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.