Home / 12,806.08-19,210.16-3,923.36

Finding the Fourth Proportional to 12,806.08, 19,210.16 and 3,923.36

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Solution

The fourth proportional to 12,806.08, 19,210.16 and 3,923.36 is: 5,885.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,806.08 : 19,210.16 = 3,923.36 : x
  2. Step 2: Convert to fraction form
    12,806.08/19,210.16 = 3,923.36/x
  3. Step 3: Cross multiply
    12,806.08x = 19,210.16 × 3,923.36
  4. Step 4: Simplify right side
    12,806.08x = 75,368,373.34
  5. Step 5: Solve for x
    x = 75,368,373.34/12,806.08
  6. Step 6: Final answer
    x = 5,885.36

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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.