Home / 12,807.49-19,213.54-5,790.81

Finding the Fourth Proportional to 12,807.49, 19,213.54 and 5,790.81

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Solution

The fourth proportional to 12,807.49, 19,213.54 and 5,790.81 is: 8,687.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,807.49 : 19,213.54 = 5,790.81 : x
  2. Step 2: Convert to fraction form
    12,807.49/19,213.54 = 5,790.81/x
  3. Step 3: Cross multiply
    12,807.49x = 19,213.54 × 5,790.81
  4. Step 4: Simplify right side
    12,807.49x = 111,261,887.60
  5. Step 5: Solve for x
    x = 111,261,887.60/12,807.49
  6. Step 6: Final answer
    x = 8,687.25

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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.