Home / 7,418.36-11,126.56-2,800.76

Finding the Fourth Proportional to 7,418.36, 11,126.56 and 2,800.76

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Solution

The fourth proportional to 7,418.36, 11,126.56 and 2,800.76 is: 4,200.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.36 : 11,126.56 = 2,800.76 : x
  2. Step 2: Convert to fraction form
    7,418.36/11,126.56 = 2,800.76/x
  3. Step 3: Cross multiply
    7,418.36x = 11,126.56 × 2,800.76
  4. Step 4: Simplify right side
    7,418.36x = 31,162,824.19
  5. Step 5: Solve for x
    x = 31,162,824.19/7,418.36
  6. Step 6: Final answer
    x = 4,200.77

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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.