Home / 8,555.42-12,838.89-3,008.81

Finding the Fourth Proportional to 8,555.42, 12,838.89 and 3,008.81

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Solution

The fourth proportional to 8,555.42, 12,838.89 and 3,008.81 is: 4,515.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.42 : 12,838.89 = 3,008.81 : x
  2. Step 2: Convert to fraction form
    8,555.42/12,838.89 = 3,008.81/x
  3. Step 3: Cross multiply
    8,555.42x = 12,838.89 × 3,008.81
  4. Step 4: Simplify right side
    8,555.42x = 38,629,780.62
  5. Step 5: Solve for x
    x = 38,629,780.62/8,555.42
  6. Step 6: Final answer
    x = 4,515.24

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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.