Home / 13,002.40-19,508.40-4,237.60

Finding the Fourth Proportional to 13,002.40, 19,508.40 and 4,237.60

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Solution

The fourth proportional to 13,002.40, 19,508.40 and 4,237.60 is: 6,357.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,002.40 : 19,508.40 = 4,237.60 : x
  2. Step 2: Convert to fraction form
    13,002.40/19,508.40 = 4,237.60/x
  3. Step 3: Cross multiply
    13,002.40x = 19,508.40 × 4,237.60
  4. Step 4: Simplify right side
    13,002.40x = 82,668,795.84
  5. Step 5: Solve for x
    x = 82,668,795.84/13,002.40
  6. Step 6: Final answer
    x = 6,357.96

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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.