Home / 13,089.12-19,631.92-4,203.68

Finding the Fourth Proportional to 13,089.12, 19,631.92 and 4,203.68

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Solution

The fourth proportional to 13,089.12, 19,631.92 and 4,203.68 is: 6,304.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,089.12 : 19,631.92 = 4,203.68 : x
  2. Step 2: Convert to fraction form
    13,089.12/19,631.92 = 4,203.68/x
  3. Step 3: Cross multiply
    13,089.12x = 19,631.92 × 4,203.68
  4. Step 4: Simplify right side
    13,089.12x = 82,526,309.47
  5. Step 5: Solve for x
    x = 82,526,309.47/13,089.12
  6. Step 6: Final answer
    x = 6,304.95

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1.5x scale

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.