Home / 12,343.08-18,514.62-4,140.84

Finding the Fourth Proportional to 12,343.08, 18,514.62 and 4,140.84

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Solution

The fourth proportional to 12,343.08, 18,514.62 and 4,140.84 is: 6,211.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,343.08 : 18,514.62 = 4,140.84 : x
  2. Step 2: Convert to fraction form
    12,343.08/18,514.62 = 4,140.84/x
  3. Step 3: Cross multiply
    12,343.08x = 18,514.62 × 4,140.84
  4. Step 4: Simplify right side
    12,343.08x = 76,666,079.08
  5. Step 5: Solve for x
    x = 76,666,079.08/12,343.08
  6. Step 6: Final answer
    x = 6,211.26

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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.