Home / 6,611.95-9,120.36-5,417.61

Finding the Fourth Proportional to 6,611.95, 9,120.36 and 5,417.61

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Solution

The fourth proportional to 6,611.95, 9,120.36 and 5,417.61 is: 7,472.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,611.95 : 9,120.36 = 5,417.61 : x
  2. Step 2: Convert to fraction form
    6,611.95/9,120.36 = 5,417.61/x
  3. Step 3: Cross multiply
    6,611.95x = 9,120.36 × 5,417.61
  4. Step 4: Simplify right side
    6,611.95x = 49,410,553.54
  5. Step 5: Solve for x
    x = 49,410,553.54/6,611.95
  6. Step 6: Final answer
    x = 7,472.92

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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.