Home / 8,151.87-11,249.63-4,615.77

Finding the Fourth Proportional to 8,151.87, 11,249.63 and 4,615.77

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Solution

The fourth proportional to 8,151.87, 11,249.63 and 4,615.77 is: 6,369.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,151.87 : 11,249.63 = 4,615.77 : x
  2. Step 2: Convert to fraction form
    8,151.87/11,249.63 = 4,615.77/x
  3. Step 3: Cross multiply
    8,151.87x = 11,249.63 × 4,615.77
  4. Step 4: Simplify right side
    8,151.87x = 51,925,681.59
  5. Step 5: Solve for x
    x = 51,925,681.59/8,151.87
  6. Step 6: Final answer
    x = 6,369.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.