Home / 9,191.27-13,782.58-6,421.07

Finding the Fourth Proportional to 9,191.27, 13,782.58 and 6,421.07

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Solution

The fourth proportional to 9,191.27, 13,782.58 and 6,421.07 is: 9,628.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,191.27 : 13,782.58 = 6,421.07 : x
  2. Step 2: Convert to fraction form
    9,191.27/13,782.58 = 6,421.07/x
  3. Step 3: Cross multiply
    9,191.27x = 13,782.58 × 6,421.07
  4. Step 4: Simplify right side
    9,191.27x = 88,498,910.96
  5. Step 5: Solve for x
    x = 88,498,910.96/9,191.27
  6. Step 6: Final answer
    x = 9,628.58

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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.