Home / 11,723.48-16,178-6,418.18

Finding the Fourth Proportional to 11,723.48, 16,178 and 6,418.18

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Solution

The fourth proportional to 11,723.48, 16,178 and 6,418.18 is: 8,856.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,723.48 : 16,178 = 6,418.18 : x
  2. Step 2: Convert to fraction form
    11,723.48/16,178 = 6,418.18/x
  3. Step 3: Cross multiply
    11,723.48x = 16,178 × 6,418.18
  4. Step 4: Simplify right side
    11,723.48x = 103,833,316.04
  5. Step 5: Solve for x
    x = 103,833,316.04/11,723.48
  6. Step 6: Final answer
    x = 8,856.87

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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.