Home / 11,724.12-16,181.10-6,688.38

Finding the Fourth Proportional to 11,724.12, 16,181.10 and 6,688.38

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Solution

The fourth proportional to 11,724.12, 16,181.10 and 6,688.38 is: 9,231.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,724.12 : 16,181.10 = 6,688.38 : x
  2. Step 2: Convert to fraction form
    11,724.12/16,181.10 = 6,688.38/x
  3. Step 3: Cross multiply
    11,724.12x = 16,181.10 × 6,688.38
  4. Step 4: Simplify right side
    11,724.12x = 108,225,345.62
  5. Step 5: Solve for x
    x = 108,225,345.62/11,724.12
  6. Step 6: Final answer
    x = 9,231.00

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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.