Home / 8,106.88-12,144.58-5,325.11

Finding the Fourth Proportional to 8,106.88, 12,144.58 and 5,325.11

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Solution

The fourth proportional to 8,106.88, 12,144.58 and 5,325.11 is: 7,977.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.88 : 12,144.58 = 5,325.11 : x
  2. Step 2: Convert to fraction form
    8,106.88/12,144.58 = 5,325.11/x
  3. Step 3: Cross multiply
    8,106.88x = 12,144.58 × 5,325.11
  4. Step 4: Simplify right side
    8,106.88x = 64,671,137.06
  5. Step 5: Solve for x
    x = 64,671,137.06/8,106.88
  6. Step 6: Final answer
    x = 7,977.32

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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.