Home / 7,485.82-11,214.36-4,188.92

Finding the Fourth Proportional to 7,485.82, 11,214.36 and 4,188.92

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Solution

The fourth proportional to 7,485.82, 11,214.36 and 4,188.92 is: 6,275.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.82 : 11,214.36 = 4,188.92 : x
  2. Step 2: Convert to fraction form
    7,485.82/11,214.36 = 4,188.92/x
  3. Step 3: Cross multiply
    7,485.82x = 11,214.36 × 4,188.92
  4. Step 4: Simplify right side
    7,485.82x = 46,976,056.89
  5. Step 5: Solve for x
    x = 46,976,056.89/7,485.82
  6. Step 6: Final answer
    x = 6,275.34

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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.