Home / 13,318.04-19,977.08-3,456.50

Finding the Fourth Proportional to 13,318.04, 19,977.08 and 3,456.50

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Solution

The fourth proportional to 13,318.04, 19,977.08 and 3,456.50 is: 5,184.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,318.04 : 19,977.08 = 3,456.50 : x
  2. Step 2: Convert to fraction form
    13,318.04/19,977.08 = 3,456.50/x
  3. Step 3: Cross multiply
    13,318.04x = 19,977.08 × 3,456.50
  4. Step 4: Simplify right side
    13,318.04x = 69,050,659.85
  5. Step 5: Solve for x
    x = 69,050,659.85/13,318.04
  6. Step 6: Final answer
    x = 5,184.75

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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.