Home / 12,085.38-18,114.96-4,687.65

Finding the Fourth Proportional to 12,085.38, 18,114.96 and 4,687.65

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Solution

The fourth proportional to 12,085.38, 18,114.96 and 4,687.65 is: 7,026.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,085.38 : 18,114.96 = 4,687.65 : x
  2. Step 2: Convert to fraction form
    12,085.38/18,114.96 = 4,687.65/x
  3. Step 3: Cross multiply
    12,085.38x = 18,114.96 × 4,687.65
  4. Step 4: Simplify right side
    12,085.38x = 84,916,592.24
  5. Step 5: Solve for x
    x = 84,916,592.24/12,085.38
  6. Step 6: Final answer
    x = 7,026.39

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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.