Home / 9,120.15-13,675.82-4,186.62

Finding the Fourth Proportional to 9,120.15, 13,675.82 and 4,186.62

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Solution

The fourth proportional to 9,120.15, 13,675.82 and 4,186.62 is: 6,277.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120.15 : 13,675.82 = 4,186.62 : x
  2. Step 2: Convert to fraction form
    9,120.15/13,675.82 = 4,186.62/x
  3. Step 3: Cross multiply
    9,120.15x = 13,675.82 × 4,186.62
  4. Step 4: Simplify right side
    9,120.15x = 57,255,440.60
  5. Step 5: Solve for x
    x = 57,255,440.60/9,120.15
  6. Step 6: Final answer
    x = 6,277.91

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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.