Home / 11,727.61-16,180.07-6,688.19

Finding the Fourth Proportional to 11,727.61, 16,180.07 and 6,688.19

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Solution

The fourth proportional to 11,727.61, 16,180.07 and 6,688.19 is: 9,227.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,727.61 : 16,180.07 = 6,688.19 : x
  2. Step 2: Convert to fraction form
    11,727.61/16,180.07 = 6,688.19/x
  3. Step 3: Cross multiply
    11,727.61x = 16,180.07 × 6,688.19
  4. Step 4: Simplify right side
    11,727.61x = 108,215,389.38
  5. Step 5: Solve for x
    x = 108,215,389.38/11,727.61
  6. Step 6: Final answer
    x = 9,227.41

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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.