Home / 9,191.52-13,790.40-4,000.80

Finding the Fourth Proportional to 9,191.52, 13,790.40 and 4,000.80

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Solution

The fourth proportional to 9,191.52, 13,790.40 and 4,000.80 is: 6,002.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,191.52 : 13,790.40 = 4,000.80 : x
  2. Step 2: Convert to fraction form
    9,191.52/13,790.40 = 4,000.80/x
  3. Step 3: Cross multiply
    9,191.52x = 13,790.40 × 4,000.80
  4. Step 4: Simplify right side
    9,191.52x = 55,172,632.32
  5. Step 5: Solve for x
    x = 55,172,632.32/9,191.52
  6. Step 6: Final answer
    x = 6,002.56

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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.