Home / 6,690.27-9,987.68-6,245.58

Finding the Fourth Proportional to 6,690.27, 9,987.68 and 6,245.58

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Solution

The fourth proportional to 6,690.27, 9,987.68 and 6,245.58 is: 9,323.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,690.27 : 9,987.68 = 6,245.58 : x
  2. Step 2: Convert to fraction form
    6,690.27/9,987.68 = 6,245.58/x
  3. Step 3: Cross multiply
    6,690.27x = 9,987.68 × 6,245.58
  4. Step 4: Simplify right side
    6,690.27x = 62,378,823.23
  5. Step 5: Solve for x
    x = 62,378,823.23/6,690.27
  6. Step 6: Final answer
    x = 9,323.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.