Home / 12,803.80-19,206.30-4,039.40

Finding the Fourth Proportional to 12,803.80, 19,206.30 and 4,039.40

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Solution

The fourth proportional to 12,803.80, 19,206.30 and 4,039.40 is: 6,059.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,803.80 : 19,206.30 = 4,039.40 : x
  2. Step 2: Convert to fraction form
    12,803.80/19,206.30 = 4,039.40/x
  3. Step 3: Cross multiply
    12,803.80x = 19,206.30 × 4,039.40
  4. Step 4: Simplify right side
    12,803.80x = 77,581,928.22
  5. Step 5: Solve for x
    x = 77,581,928.22/12,803.80
  6. Step 6: Final answer
    x = 6,059.29

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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.