Home / 11,300.77-16,951.31-4,278.90

Finding the Fourth Proportional to 11,300.77, 16,951.31 and 4,278.90

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Solution

The fourth proportional to 11,300.77, 16,951.31 and 4,278.90 is: 6,418.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,300.77 : 16,951.31 = 4,278.90 : x
  2. Step 2: Convert to fraction form
    11,300.77/16,951.31 = 4,278.90/x
  3. Step 3: Cross multiply
    11,300.77x = 16,951.31 × 4,278.90
  4. Step 4: Simplify right side
    11,300.77x = 72,532,960.36
  5. Step 5: Solve for x
    x = 72,532,960.36/11,300.77
  6. Step 6: Final answer
    x = 6,418.41

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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.