Home / 13,235.84-19,839.92-9,720.62

Finding the Fourth Proportional to 13,235.84, 19,839.92 and 9,720.62

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Solution

The fourth proportional to 13,235.84, 19,839.92 and 9,720.62 is: 14,570.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,235.84 : 19,839.92 = 9,720.62 : x
  2. Step 2: Convert to fraction form
    13,235.84/19,839.92 = 9,720.62/x
  3. Step 3: Cross multiply
    13,235.84x = 19,839.92 × 9,720.62
  4. Step 4: Simplify right side
    13,235.84x = 192,856,175.35
  5. Step 5: Solve for x
    x = 192,856,175.35/13,235.84
  6. Step 6: Final answer
    x = 14,570.76

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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.