Home / 8,135.94-12,214.40-6,555.63

Finding the Fourth Proportional to 8,135.94, 12,214.40 and 6,555.63

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Solution

The fourth proportional to 8,135.94, 12,214.40 and 6,555.63 is: 9,841.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,135.94 : 12,214.40 = 6,555.63 : x
  2. Step 2: Convert to fraction form
    8,135.94/12,214.40 = 6,555.63/x
  3. Step 3: Cross multiply
    8,135.94x = 12,214.40 × 6,555.63
  4. Step 4: Simplify right side
    8,135.94x = 80,073,100.10
  5. Step 5: Solve for x
    x = 80,073,100.10/8,135.94
  6. Step 6: Final answer
    x = 9,841.89

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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.