Home / 12,156.58-18,234.99-3,392.14

Finding the Fourth Proportional to 12,156.58, 18,234.99 and 3,392.14

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Solution

The fourth proportional to 12,156.58, 18,234.99 and 3,392.14 is: 5,088.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,156.58 : 18,234.99 = 3,392.14 : x
  2. Step 2: Convert to fraction form
    12,156.58/18,234.99 = 3,392.14/x
  3. Step 3: Cross multiply
    12,156.58x = 18,234.99 × 3,392.14
  4. Step 4: Simplify right side
    12,156.58x = 61,855,638.98
  5. Step 5: Solve for x
    x = 61,855,638.98/12,156.58
  6. Step 6: Final answer
    x = 5,088.24

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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.