Home / 12,816.01-19,208.91-5,787.80

Finding the Fourth Proportional to 12,816.01, 19,208.91 and 5,787.80

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Solution

The fourth proportional to 12,816.01, 19,208.91 and 5,787.80 is: 8,674.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,816.01 : 19,208.91 = 5,787.80 : x
  2. Step 2: Convert to fraction form
    12,816.01/19,208.91 = 5,787.80/x
  3. Step 3: Cross multiply
    12,816.01x = 19,208.91 × 5,787.80
  4. Step 4: Simplify right side
    12,816.01x = 111,177,233.25
  5. Step 5: Solve for x
    x = 111,177,233.25/12,816.01
  6. Step 6: Final answer
    x = 8,674.87

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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.