Home / 8,722.35-12,037.41-5,185.08

Finding the Fourth Proportional to 8,722.35, 12,037.41 and 5,185.08

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Solution

The fourth proportional to 8,722.35, 12,037.41 and 5,185.08 is: 7,155.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.35 : 12,037.41 = 5,185.08 : x
  2. Step 2: Convert to fraction form
    8,722.35/12,037.41 = 5,185.08/x
  3. Step 3: Cross multiply
    8,722.35x = 12,037.41 × 5,185.08
  4. Step 4: Simplify right side
    8,722.35x = 62,414,933.84
  5. Step 5: Solve for x
    x = 62,414,933.84/8,722.35
  6. Step 6: Final answer
    x = 7,155.75

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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.