Home / 12,623.15-18,934.72-3,389.15

Finding the Fourth Proportional to 12,623.15, 18,934.72 and 3,389.15

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Solution

The fourth proportional to 12,623.15, 18,934.72 and 3,389.15 is: 5,083.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,623.15 : 18,934.72 = 3,389.15 : x
  2. Step 2: Convert to fraction form
    12,623.15/18,934.72 = 3,389.15/x
  3. Step 3: Cross multiply
    12,623.15x = 18,934.72 × 3,389.15
  4. Step 4: Simplify right side
    12,623.15x = 64,172,503.14
  5. Step 5: Solve for x
    x = 64,172,503.14/12,623.15
  6. Step 6: Final answer
    x = 5,083.72

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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.