Home / 12,649.56-18,935.46-10,783.32

Finding the Fourth Proportional to 12,649.56, 18,935.46 and 10,783.32

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Solution

The fourth proportional to 12,649.56, 18,935.46 and 10,783.32 is: 16,141.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,649.56 : 18,935.46 = 10,783.32 : x
  2. Step 2: Convert to fraction form
    12,649.56/18,935.46 = 10,783.32/x
  3. Step 3: Cross multiply
    12,649.56x = 18,935.46 × 10,783.32
  4. Step 4: Simplify right side
    12,649.56x = 204,187,124.53
  5. Step 5: Solve for x
    x = 204,187,124.53/12,649.56
  6. Step 6: Final answer
    x = 16,141.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.