Home / 12,816.28-19,236.30-7,895.53

Finding the Fourth Proportional to 12,816.28, 19,236.30 and 7,895.53

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Solution

The fourth proportional to 12,816.28, 19,236.30 and 7,895.53 is: 11,850.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,816.28 : 19,236.30 = 7,895.53 : x
  2. Step 2: Convert to fraction form
    12,816.28/19,236.30 = 7,895.53/x
  3. Step 3: Cross multiply
    12,816.28x = 19,236.30 × 7,895.53
  4. Step 4: Simplify right side
    12,816.28x = 151,880,783.74
  5. Step 5: Solve for x
    x = 151,880,783.74/12,816.28
  6. Step 6: Final answer
    x = 11,850.61

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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.