Home / 12,356.62-18,532.49-5,781.04

Finding the Fourth Proportional to 12,356.62, 18,532.49 and 5,781.04

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Solution

The fourth proportional to 12,356.62, 18,532.49 and 5,781.04 is: 8,670.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356.62 : 18,532.49 = 5,781.04 : x
  2. Step 2: Convert to fraction form
    12,356.62/18,532.49 = 5,781.04/x
  3. Step 3: Cross multiply
    12,356.62x = 18,532.49 × 5,781.04
  4. Step 4: Simplify right side
    12,356.62x = 107,137,065.99
  5. Step 5: Solve for x
    x = 107,137,065.99/12,356.62
  6. Step 6: Final answer
    x = 8,670.42

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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.