Home / 15,178.26-20,944.80-8,463.36

Finding the Fourth Proportional to 15,178.26, 20,944.80 and 8,463.36

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Solution

The fourth proportional to 15,178.26, 20,944.80 and 8,463.36 is: 11,678.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,178.26 : 20,944.80 = 8,463.36 : x
  2. Step 2: Convert to fraction form
    15,178.26/20,944.80 = 8,463.36/x
  3. Step 3: Cross multiply
    15,178.26x = 20,944.80 × 8,463.36
  4. Step 4: Simplify right side
    15,178.26x = 177,263,382.53
  5. Step 5: Solve for x
    x = 177,263,382.53/15,178.26
  6. Step 6: Final answer
    x = 11,678.77

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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.