Home / 12,868.24-19,305.36-4,971.92

Finding the Fourth Proportional to 12,868.24, 19,305.36 and 4,971.92

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Solution

The fourth proportional to 12,868.24, 19,305.36 and 4,971.92 is: 7,459.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,868.24 : 19,305.36 = 4,971.92 : x
  2. Step 2: Convert to fraction form
    12,868.24/19,305.36 = 4,971.92/x
  3. Step 3: Cross multiply
    12,868.24x = 19,305.36 × 4,971.92
  4. Step 4: Simplify right side
    12,868.24x = 95,984,705.49
  5. Step 5: Solve for x
    x = 95,984,705.49/12,868.24
  6. Step 6: Final answer
    x = 7,459.04

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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.