Home / 11,424.96-15,766.34-6,389.12

Finding the Fourth Proportional to 11,424.96, 15,766.34 and 6,389.12

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Solution

The fourth proportional to 11,424.96, 15,766.34 and 6,389.12 is: 8,816.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,424.96 : 15,766.34 = 6,389.12 : x
  2. Step 2: Convert to fraction form
    11,424.96/15,766.34 = 6,389.12/x
  3. Step 3: Cross multiply
    11,424.96x = 15,766.34 × 6,389.12
  4. Step 4: Simplify right side
    11,424.96x = 100,733,006.28
  5. Step 5: Solve for x
    x = 100,733,006.28/11,424.96
  6. Step 6: Final answer
    x = 8,816.92

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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.