Home / 8,325.72-12,491.82-3,135.24

Finding the Fourth Proportional to 8,325.72, 12,491.82 and 3,135.24

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Solution

The fourth proportional to 8,325.72, 12,491.82 and 3,135.24 is: 4,704.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,325.72 : 12,491.82 = 3,135.24 : x
  2. Step 2: Convert to fraction form
    8,325.72/12,491.82 = 3,135.24/x
  3. Step 3: Cross multiply
    8,325.72x = 12,491.82 × 3,135.24
  4. Step 4: Simplify right side
    8,325.72x = 39,164,853.74
  5. Step 5: Solve for x
    x = 39,164,853.74/8,325.72
  6. Step 6: Final answer
    x = 4,704.08

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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.