Home / 8,155.84-11,254.27-6,481.30

Finding the Fourth Proportional to 8,155.84, 11,254.27 and 6,481.30

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Solution

The fourth proportional to 8,155.84, 11,254.27 and 6,481.30 is: 8,943.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,155.84 : 11,254.27 = 6,481.30 : x
  2. Step 2: Convert to fraction form
    8,155.84/11,254.27 = 6,481.30/x
  3. Step 3: Cross multiply
    8,155.84x = 11,254.27 × 6,481.30
  4. Step 4: Simplify right side
    8,155.84x = 72,942,300.15
  5. Step 5: Solve for x
    x = 72,942,300.15/8,155.84
  6. Step 6: Final answer
    x = 8,943.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.