Home / 7,418.21-11,126.23-2,800.13

Finding the Fourth Proportional to 7,418.21, 11,126.23 and 2,800.13

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Solution

The fourth proportional to 7,418.21, 11,126.23 and 2,800.13 is: 4,199.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.21 : 11,126.23 = 2,800.13 : x
  2. Step 2: Convert to fraction form
    7,418.21/11,126.23 = 2,800.13/x
  3. Step 3: Cross multiply
    7,418.21x = 11,126.23 × 2,800.13
  4. Step 4: Simplify right side
    7,418.21x = 31,154,827.78
  5. Step 5: Solve for x
    x = 31,154,827.78/7,418.21
  6. Step 6: Final answer
    x = 4,199.78

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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.